Python's PyQt5 installation timeout solution

background:

Error when installing PyQt5, timeout, you know the external network

solve:

Directly read and install through the mirror url

Previous command:

pip3 install PyQt5

Command after fix:

pip3 install --index-url yoururl PyQt5

For example, the url is: https://pypi.douban.com/simple
pip3 install --index-url https://pypi.douban.com/simple PyQt5