HTTP 407 error when using a git source

• I am on the latest Poetry version.
• I have searched the issues of this repo and believe that this is not a duplicate.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• OS version and name: macOS 12.5.1, Debian 11
• Poetry version: 1.2.0, also tested against master and older 1.1 releases
• Link of a Gist with the contents of your pyproject.toml file: https://github.com/dsp-testing/poetry-407/blob/main/pyproject.toml

Issue

Hi Poetry friends 👋

In Dependabot we’re seeing an issue where when pyproject.toml contains a git source for a dependency we get a 407 Proxy Authentication Required. Dependabot uses a proxy that requires authentication to do updates. To reproduce the issue, I created https://github.com/dsp-testing/poetry-407 since it takes a bit of setup.

It seems that when the git source is present, Poetry loses the username and password to the proxy.

Let me know if you have other questions or I’ve left something out. Thanks!

[dimbleby]

No worries.

dulwich is reasonably active, if you do find the time to reproduce accurately they’d likely welcome the report.

[neersighted]

I would encourage getting support into dulwich – long-term we don’t plan to keep the system-git-client option, but only after dulwich proves stable/feature complete for our uses.