pip鏡像
https://pypi.tuna.tsinghua.edu.cn/simple
https://pypi.douban.io.com/simplepython
pip install python-qt -i https://pypi.tuna.tsinghua.edu.cn/simple
清華開源軟件鏡像:(anaconda)
https://mirrors.tuna.tsinghua.edu.cn/
https://mirrors.tuna.tsinghua.edu.cn/anaconda/blog