when pip install opencv-python throw error like this:
...
...
Working directory:
C:\Users\XXXXXX\AppData\Local\Temp\pip-install-kzx3vj4c\opencv-python_c2ee9d023a4a45e584477071884f30ac\_skbuild\win-amd64-3.6\cmake-build
Please see CMake's output for more information.
----------------------------------------
ERROR: Failed building wheel for opencv-python
Failed to build opencv-python
ERROR: Could not build wheels for opencv-python which use PEP 517 and cannot be installed directlyAbout 1 min