Opencv Error: Waitkey() Function Not Implemented

I've ubuntu 14.04(64-bit) installed on my machine. I've python 3.6 and OpenCV 3 installed on it. When I'm trying to run the following line of code it throws error. key = cv2.waitK

Solution 1:

You are missing a few libraries that OpenCV depends on, it is very easy to install OpenCV on Linux, just use an install shell script and execute it. It will install all the dependencies and install OpenCV correctly, here is a .sh that I have used in the past:

https://github.com/milq/milq/blob/master/scripts/bash/install-opencv.sh