Today ytkah ERROR an error when installing lxml: Could not find a version that satisfies the requirement lxml (from versions: none), ERROR: No matching distribution found for lxml, try to upgrade my pip
python -m pip install --upgrade pip
Again install lxml or wrong, considering that the network is unstable problem, then we use the mirror source to accelerate domestic
pip install 包名-i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
--trusted-host pypi.douban.com This is to obtain the certification ssl certificate
execution succeed!
But every so manually enter would be more trouble, we advise you to replace the country's image source when changing system details, refer to https://blog.csdn.net/u012592062/article/details/51966649