生成依赖

pip freeze > requirements.txt

下载依赖

pip download -d ./packages -i https://pypi.tuna.tsinghua.edu.cn/simple -r requirements.txt (-d、-i可以不填)

安装依赖

pip install --no-index --find-links=./packages -r ./requirements.txt

卸载依赖

pip uninstall -y -r requirements.txt