pip3 更改安装路径

pip3更改默认的包安装路径，编辑 .pip/pip.conf

[install]

install-option=--prefix=~/.local

更换国内源 清华源

[global]
timeout = 6000
index-url = https://pypi.tuna.tsinghua.edu.cn/simple
trusted-host = pypi.tuna.tsinghua.edu.cn