pip
pip换源
临时
pip install xxxx -i https://pypi.tuna.tsinghua.edu.cn/simple
全局
pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
# 清华源: pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
# 豆瓣源: pip config set global.index-url http://pypi.douban.com/simple/
# 腾讯源: pip config set global.index-url http://mirrors.cloud.tencent.com/pypi/simple
# 阿里源: pip config set global.index-url https://mirrors.aliyun.com/pypi/simple/
pip的常用命令
查看pip版本
pip --version
升级pip
python -m pip install --upgrade pip
查看已安装的库
pip list
安装库
pip install arrow
pip install arrow=1.2.2
pip install arrow,requests
卸载库
pip uninstall arrow
生成requirements.txt
pip freeze > requirements.txt
还原requirements.txt
pip install -r requirements.txt