'4.7.0' [5/8] RUN pip install opencv-python==4.7.0: 0.828 ERROR: Could not find a version that satisfies the requirement opencv-python==4.7.0 (from versions: 3.4.0.14 ...
Welcome to OpenCV Python Beginners Tutorial Part 3. In case if you missed reading the Second tutorial of OpenCV python, then it is recommended to read the second part at OpenCV Python Tutorial Part 2.