In [1]:

    

import cv2


    

In [2]:

    

cap_cam = cv2.VideoCapture(0)
print(type(cap_cam))


    

    




<class 'cv2.VideoCapture'>

In [3]:

    

print(cap_cam.isOpened())


    

    




True

In [4]:

    

cap_cam_wrong = cv2.VideoCapture(1)
print(type(cap_cam_wrong))


    

    




<class 'cv2.VideoCapture'>

In [5]:

    

print(cap_cam_wrong.isOpened())


    

    




False

In [6]:

    

cap_cam.release()