cv2.imshow command doesn't work properly in opencv-python

Question

I\'m using opencv 2.4.2, python 2.7 The following simple code created a window of the correct name, but its content is just blank and doesn\'t show the image:

Answer 1

You've got all the necessary pieces somewhere in this thread:

if cv2.waitKey(): cv2.destroyAllWindows()

works fine for me in IDLE.