pip更新报错解决方案，亲测可用

Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by ‘SSLError(SSLError(“bad handshake: Error([(‘SSL routines’, ‘ssl3_get_server_certificate’, ‘certificate verify failed’)],)”,),)’: /simple/pip/
总是报错

改用如下命令

python -m pip install -U pip -i http://pypi.douban.com/simple --trusted-host pypi.douban.com

更新成功，觉得有帮助的小伙伴记得点个赞鸭，
听说吴彦祖看了都点赞了