Typical video reading script in Python using OpenCV

typical_video_reading.py

import cv2

cap = cv2.VideoCapture("myvideo.mkv")

while(True):
    # Capture frame-by-frame
    ret, frame = cap.read()
    if not ret:
        break

    # Display the resulting frame
    cv2.imshow('frame', frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# When everything done, release the capture
cap.release()
cv2.destroyAllWindows()