In [1]:

    

import csv
from matplotlib import pyplot as plt
import numpy as np
from scipy.misc import imread
import pickle
import cv2
from math import radians as rad
from sklearn import linear_model
import seaborn as sns
import warnings
from jupyterthemes import jtplot
from IPython import display
import threading
from math import cos, sin
import matplotlib.patches as patches


    

In [2]:

    

%matplotlib inline
jtplot.style()
sns.set_context("poster")
warnings.filterwarnings("ignore")


    

In [3]:

    

import  time, sys, traceback, math

com_port = "/dev/tty.usbmodem12341"  # example: 5 == "COM6" == "/dev/tty5"
baudrate = 115200

lidar_data = [[] for i in
             range(360)]  # A list of 360 elements Angle, Distance , quality

counter = 0
def read_Lidar():
    global lidar_data
    global counter
    while counter < 10000000:
        counter += 1
        #udpate every second
        try:
            time.sleep(0.00001)  # do not hog the processor power
            input = str(ser.readline())
            input.strip()
            chunks = input.split(',')

            if len(chunks) == 4:
                angle = chunks[1]
                distance = chunks[2]
                strength = chunks[3]

                strength = strength.replace("\\r\\n", "").replace("'", "")

                angle = int(angle)
                distance = int(distance)
                strength = int(strength)

#                 print("angle: {} distance: {} strength: {}".format(
#                     angle, distance, strength
#                 ))
                
                lidar_data[angle] = (distance, strength)
        except:
            traceback.print_exc(file=sys.stdout)


import serial

ser = serial.Serial(com_port,
                    baudrate)


    

In [4]:

    

def plot_lidar():
    plt.figure(figsize=(12,12))
    data = [(i+87, x[0]) for (i,x) in enumerate(lidar_data) if x and x[1] > 50]
    X = [cos(rad(x[0])) * x[1] for x in data]
    y = [sin(rad(x[0])) * x[1] for x in data]
    plt.scatter(X, y, s=20)
    plt.grid(True)
    plt.xlim(-3000,3000)
    plt.ylim(-3000,3000)
    plt.gca().add_patch(patches.Rectangle((-150, -260), 300, 500, linewidth=1,edgecolor='r',facecolor='none'))
    plt.show()


    

In [5]:

    

#scrub through thismanually for bad frames.... ouch time consuming
from ipywidgets import interact, interactive, fixed, interact_manual, Layout
import ipywidgets as widgets
from IPython.display import display

interactive_plot = interactive(plot_lidar)
output = interactive_plot.children[-1]
output.layout.height = '800px'
display(interactive_plot)


    

In [ ]:

    

lidar_thread = threading.Thread(target = read_Lidar)
print ("Starting lidar")
lidar_thread.start()


    

    




Starting lidar

In [ ]:

    

while True:
    #clear any old data
    for i in range(360):
        lidar_data[i] = (0,0)
    time.sleep(.1)
    interactive_plot.update()


    

    




  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:


During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:


During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 493, in read
    buf = os.read(self.fd, size - len(read))
OSError: [Errno 6] Device not configured

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<ipython-input-3-d05f1b574dc9>", line 18, in read_Lidar
    input = str(ser.readline())
  File "/usr/local/lib/python3.6/site-packages/serial/serialposix.py", line 509, in read
    raise SerialException('read failed: {}'.format(e))
serial.serialutil.SerialException: read failed: [Errno 6] Device not configured

In [ ]: