OpenCV python, AttributeError: 'NoneType' object has no ...
stackoverflow.com › questions › 69781510Oct 30, 2021 · because you would need to say if frame is None:-- is is for identity comparison, == is for value comparison. -- you should say if not ret: break instead because that thing is how cap.read tells you it can't read -- and you should assert cap.isOpened() once before even entering the loop. all of this is basic stuff for using VideoCapture, which is explained in all the other questions with ...