阿里云 http://mirrors.aliyun.com/pypi/simple/ 中国科技大学
https://pypi.mirrors.ustc.edu.cn/simple/ 豆瓣(douban)
http://pypi.douban.com/simple/ 清华大学
https://pypi.tuna.tsinghua.edu.cn/simple/ 中国科学技术大学
http://pypi.mirrors.ustc.edu.cn/simple/
更改命令 :pip install pyinstaller -i http://pypi.douban.com/simple 发现还是报错:
WARNING: The repository located at pypi.douban.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with ‘–trusted-host pypi.douban.com’