Error message:
$ pip3 install opencv-contrib-python
ERROR: Could not find a version that satisfies the requirement opencv-contrib-python (from versions: none)
ERROR: No matching distribution found for opencv-contrib-python
Error message:
$ pip3 install opencv-contrib-python
ERROR: Could not find a version that satisfies the requirement opencv-contrib-python (from versions: none)
ERROR: No matching distribution found for opencv-contrib-python
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Check the answer here.
You have to download source code from https://github.com/skvark/opencv-python, install compiler and necessary libraries and compile OpenCV yourself.