1、ERROR: Cannot uninstall ‘xxx’. It is a distutils installed project and thus we cannot accurate
find '.' -name "*filelock*.egg-info" -exec rm -rf {} \;
source https://blog.csdn.net/j___ t/article/details/96052936
2、v irtualenv:error :unrecognized arguments: –no-site-packages
–No site packages does not have this parameter, which is a problem with the version of virtualenv
pip3 install --upgrade virtualenv==16.7.9