pip 使用PyPI国内源

pip install PyExecJS -i http://pypi.douban.com/simple –trusted-host pypi.douban.com

https://www.cnblogs.com/gqv2009/p/13140100.html

pip生成和安装requirements.txt

自动生成requirements.txt文件
pip freeze > requirements.txt

安装requirements.txt依赖
pip install -r requirements.txt

https://coco56.blog.csdn.net/article/details/103927744