access webcam using opencv

1import cv2
2
3cap = cv2.VideoCapture(0)
4
5while True:
6  ret, frame = cap.read()
7  
8  cv2.imshow('webcam feed' , frame)
9  if cv2.waitKey(1) & 0xFF == ord(' '):
10    break
11    
12cap.release()
13cv2.destroyAllWindows()
14
15#by using the spacebar you will be able to finish the process of video capturing
16#in opencv and the window will close