python - 通过代理 pip 安装包

Question

我尝试使用代理进行 pip 安装，代理设置是正确的，因为它适用于 npm install 。我尝试的是如下所示，但收到错误消息。任何想法都将非常受欢迎!

set http_proxy=http://<username>:<password>@<proxy_server>:<port>

set https_proxy=https://<username>:<password>@<proxy_server>:<port>

pip install Flask

Collecting Flask
  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'))': /simple/flask/
  Retrying (Retry(total=3, 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'))': /simple/flask/
  Retrying (Retry(total=2, 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'))': /simple/flask/
  Retrying (Retry(total=1, 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'))': /simple/flask/
  Retrying (Retry(total=0, 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'))': /simple/flask/
  Could not find a version that satisfies the requirement Flask (from versions: )
No matching distribution found for Flask

Answer 1

pip install packageName --proxy proxy_Server:portnumber

ex: pip install numpy --proxy https://myproxy@myserver.com:9090