報錯信息 ：
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', OSError('Tunnel connection failed: 407 Proxy Authentication Required ( Forefront TMG requires authorization to fulfill the request. Access to the Web Proxy filter is denied. )',))': /simple/jupyter/
- 根據報錯信息 Cannot connect to proxy判斷應該是代理的錯誤，結合由於使用公司的電腦，所以配置一下代理的環境
set http_proxy=http://username:password@proxyservice:port
tips:對於密碼中的特殊字符需要轉義，比如@ 變為%40
eg set http_proxy=https://username:pass%40word@hhhhh.com:1080
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