【Python】Could not install packages due to an EnvironmentError: [WinError 5] 拒绝访问。

Could not install packages due to an EnvironmentError: [WinError 5] 拒绝访问。: 'c:\\programdata\\anaconda3\\lib\\site-packages\\pip\\_internal\\build_env.py'
Consider using the `--user` option or check the permissions.

这个解决办法是在 install 后面加上--user,如下面语句

python -m pip install --user --upgrade pip