import numpy
import cv2
cap = cv2.VideoCapture(0)
while(True):
ret, frame = cap.read()
cv2.imshow('frame',frame)
if cv2.waitKey(20) & 0xFF == ord('q'):
break
cap.release()
cv2.destroyAllWindows()
This my code andi get this error 1.Module 'cv2' has no 'VideoCapture' member 2.Module 'cv2' has no 'imshow' member 3.Module 'cv2' has no 'waitKey' member 4.Module 'cv2' has no 'destroyAllWindows' member