无法 pip 安装任何东西，出现“无法连接到代理”错误

Question

Other solutions suggested turning off proxies and altering the system32 'hosts' file. I can't do either as I am using a company computer and need the former to connect to the company network and I don't have admin privileges for the latter. The error:

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', timeout('_ssl.c:1112: The handshake operation timed out'))': /simple/selenium/

Anyone have this experience? Specifically working for solutions that would work on a company computer

Answer 1

• Disclaimer: following is a shameless rip-off of httpx trouble shooting guide , but people need help, like, here, so...

Resolution: it is likely that you've set up your proxies like this...

proxies = {
  "http": "http://myproxy.org",
  "https": "https://myproxy.org",
}

Using this setup, you're trying to connect to the proxy using HTTP for HTTP requests, and using HTTPS for HTTPS requests.

But if you get the error above, it is likely that your proxy doesn't support connecting via HTTPS. Don't worry: that's a common gotcha.

Change the scheme of your HTTPS proxy to http://... instead of https://...:

proxies = {
  "http": "http://myproxy.org",
  "https": "http://myproxy.org",
}

This can be simplified to:

proxies = "http://myproxy.org"

For more information, see Proxies: FORWARD vs TUNNEL .