In [1]:

    

import time


    

In [2]:

    

time.time()


    

    
Out[2]:





1524142398.178439

In [3]:

    

time.time()


    

    
Out[3]:





1524142398.5505207

In [4]:

    

for i in range(3):
    print('Tick')
    time.sleep(1)
    print('Tock')
    time.sleep(1)


    

    




Tick
Tock
Tick
Tock
Tick
Tock

In [5]:

    

time.sleep(5)


    

In [6]:

    

now = time.time()


    

In [7]:

    

now


    

    
Out[7]:





1524142902.661013

In [8]:

    

round(now, 2)


    

    
Out[8]:





1524142902.66

In [9]:

    

round(now, 4)


    

    
Out[9]:





1524142902.661

In [10]:

    

round(now)


    

    
Out[10]:





1524142903

In [2]:

    

import datetime


    

In [12]:

    

datetime.datetime.now()


    

    
Out[12]:





datetime.datetime(2018, 4, 19, 10, 55, 35, 729952)

In [13]:

    

dt = datetime.datetime.now()


    

In [14]:

    

dt.year, dt.month, dt.day


    

    
Out[14]:





(2018, 4, 19)

In [15]:

    

dt.hour, dt.minute, dt.second


    

    
Out[15]:





(10, 55, 59)

In [16]:

    

datetime.datetime.fromtimestamp(1000000)


    

    
Out[16]:





datetime.datetime(1970, 1, 12, 10, 46, 40)

In [17]:

    

datetime.datetime.fromtimestamp(time.time())


    

    
Out[17]:





datetime.datetime(2018, 4, 19, 11, 1, 19, 564442)

In [18]:

    

halloween2015 = datetime.datetime(2015, 10, 31, 0 , 0, 0)


    

In [19]:

    

newyears2016 = datetime.datetime(2016, 1, 1, 0, 0, 0)


    

In [20]:

    

oct31_2015 = datetime.datetime(2015, 10, 31, 0, 0, 0)


    

In [21]:

    

halloween2015 == oct31_2015


    

    
Out[21]:





True

In [22]:

    

halloween2015 > newyears2016


    

    
Out[22]:





False

In [23]:

    

newyears2016 > halloween2015


    

    
Out[23]:





True

In [24]:

    

newyears2016 != oct31_2015


    

    
Out[24]:





True

In [25]:

    

delta = datetime.timedelta(days=11, hours=10, minutes=9, seconds=8)


    

In [26]:

    

delta.days, delta.seconds, delta.microseconds


    

    
Out[26]:





(11, 36548, 0)

In [27]:

    

delta.total_seconds()


    

    
Out[27]:





986948.0

In [28]:

    

11*24*3600 + 10*3600 + 9*60 + 8


    

    
Out[28]:





986948

In [29]:

    

str(delta)


    

    
Out[29]:





'11 days, 10:09:08'

In [30]:

    

dt = datetime.datetime.now()


    

In [31]:

    

dt


    

    
Out[31]:





datetime.datetime(2018, 4, 19, 12, 19, 27, 425635)

In [33]:

    

thousandDays = datetime.timedelta(days=1000)


    

In [34]:

    

dt + thousandDays


    

    
Out[34]:





datetime.datetime(2021, 1, 13, 12, 19, 27, 425635)

In [35]:

    

oct21st = datetime.datetime(2015, 10, 21, 16, 29, 0)


    

In [36]:

    

aboutThirtyYears = datetime.timedelta(days=365*30)


    

In [37]:

    

oct21st


    

    
Out[37]:





datetime.datetime(2015, 10, 21, 16, 29)

In [38]:

    

oct21st - aboutThirtyYears


    

    
Out[38]:





datetime.datetime(1985, 10, 28, 16, 29)

In [39]:

    

oct21st - (2 * aboutThirtyYears)


    

    
Out[39]:





datetime.datetime(1955, 11, 5, 16, 29)

In [45]:

    

halloween2016 = datetime.datetime(2016, 10, 31, 0, 0, 0)


    

In [46]:

    

while datetime.datetime.now() < halloween2016:
    time.sleep(1)


    

In [40]:

    

oct21st = datetime.datetime(2015, 10, 21, 16, 29, 0)


    

In [42]:

    

oct21st.strftime('%Y/%m/%d %H:%M:%S')


    

    
Out[42]:





'2015/10/21 16:29:00'

In [43]:

    

oct21st.strftime('%I:%M %p')


    

    
Out[43]:





'04:29 PM'

In [44]:

    

oct21st.strftime('%B of %y')


    

    
Out[44]:





'October of 15'

In [47]:

    

datetime.datetime.strptime('October 21, 2015', '%B %d, %Y')


    

    
Out[47]:





datetime.datetime(2015, 10, 21, 0, 0)

In [48]:

    

datetime.datetime.strptime('2015/10/21 16:29:00', '%Y/%m/%d %H:%M:%S')


    

    
Out[48]:





datetime.datetime(2015, 10, 21, 16, 29)

In [49]:

    

datetime.datetime.strptime("October of '15", "%B of '%y")


    

    
Out[49]:





datetime.datetime(2015, 10, 1, 0, 0)

In [50]:

    

datetime.datetime.strptime("November of '63", "%B of '%y")


    

    
Out[50]:





datetime.datetime(2063, 11, 1, 0, 0)

In [51]:

    

print("Cats", "Dogs", "Frogs", sep=" & ")


    

    




Cats & Dogs & Frogs

In [3]:

    

import threading


    

In [55]:

    

threadObj = threading.Thread(
    target=print, args=["Cats", "Dogs", "Frogs"], kwargs={"sep":" & "})


    

In [56]:

    

threadObj.start()


    

    




Cats & Dogs & Frogs

In [4]:

    

import requests


    

In [5]:

    

import subprocess


    

In [6]:

    

subprocess.Popen("/usr/bin/gnome-calculator")


    

    
Out[6]:





<subprocess.Popen at 0x7f597c27ad30>

In [7]:

    

calcProc = subprocess.Popen("/usr/bin/gnome-calculator")


    

In [9]:

    

calcProc.poll() == None


    

    
Out[9]:





True

In [10]:

    

calcProc.wait()


    

    
Out[10]:





0

In [11]:

    

calcProc.poll()


    

    
Out[11]:





0

In [14]:

    

subprocess.Popen(["/usr/bin/gedit", "/home/dario/temp.txt"])


    

    
Out[14]:





<subprocess.Popen at 0x7f596de7b400>

In [16]:

    

subprocess.Popen(["/usr/bin/python3", "hello.py"])


    

    
Out[16]:





<subprocess.Popen at 0x7f596de7bb70>

In [17]:

    

fileObj = open("hello.txt", "w")


    

In [18]:

    

fileObj.write("Hello world!!!")


    

    
Out[18]:





14

In [19]:

    

fileObj.close()


    

In [23]:

    

subprocess.Popen(["gedit", "hello.txt"], shell=True)


    

    
Out[23]:





<subprocess.Popen at 0x7f596dce0710>

In [ ]: