Could not fetch URL https://pypi.org/simple/selenium/: There was a problem confirming the ssl cer...

学习视觉爬虫安装selenium时遇到的问题：

Could not fetch URL https://pypi.org/simple/selenium/: There was a problem confirming the ssl certificate:

解决方法：

# 设置自己的代理通过HTTP方式下载

set http_proxy=http://127.0.0.1:7890 & set https_proxy=http://127.0.0.1:7890

pip install selenium

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