解决pip安装连接超时的问题(WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=Non)
如图显示该警告信息WARNING:Retrying(Retry(total=4,connect=None,read=None,redirect=None,status=Non只需在命令行后面加上-ihttp://pypi.douban.com/simple--trusted-hostpypi.douban.com指定安装源即可