pip升级或卸载某模块时， Cannot uninstall 'xxx'. 报错解决

pip升级或卸载某模块时（如 pip3 install --ignore-installed --upgrade scipy）如果出现下列报错：

Cannot uninstall 'xxx'. 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.

可通过添加' --ignore-installed'解决。

pip3 install --ignore-installed --upgrade scipy