CODE EXAMPLE FOR PYTHON

show a video cv2

import cv2
cap = cv2.VideoCapture(0)
while True:
  ret, frame = cap.read()
  if not ret:
  	break
  else:
    cv2.imshow('frame',frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
      break

cap.release()
cv2.destroyAllWindows()