Collecting beautifulsoup4The repository located at mirrors.aliyun.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS it is recommended to use HTTPS instead, otherwise you may silence this warning and allow it anyways with ‘–trusted-host mirrors.aliyun.com’.Could not find a version that satisfies the requirement beautifulsoup4 (from versions: )No matching distribution found for beautifulsoup4

–-trusted-host mirrors.aliyun.com

pip install beautifulsoup4 --trusted-host mirrors.aliyun.com

[global]index-url = http://mirrors.aliyun.com/pypi/simple/[install]trusted-host=mirrors.aliyun.com