将包依赖信息保存在requirements.txt文件
pip freeze > requirements.txt
根据依赖文件安装依赖
pip install -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple/
根据依赖文件下载依赖包
pip install -d /path/to/save/package -r requirements.txt
pip freeze > requirements.txt
pip install -r requirements.txt -i http://mirrors.aliyun.com/pypi/simple/
pip install -d /path/to/save/package -r requirements.txt