问题描述: Cannot uninstall 'certifi'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
解决办法:
pip install xxx --ignore-installed
https://stackoverflow.com/questions/49932759/pip-10-and-apt-how-to-avoid-cannot-uninstall-x-errors-for-distutils-packages
