AttributeError: module 'cv2.cv2' has no attribute 'CV_AA' code example

Example 1: module 'cv2.cv2' has no attribute 'imWrite'

pip install opencv-contrib-python

Example 2: module 'cv2.cv2' has no attribute 'videowriter'

#for opencv3 do this

cv2.VideoWriter_fourcc(*'MJPG')