pip still prompts for username/password even when keyring is configured

[Time0o]

Description

I'm trying to download a package from a GitLab registry using credentials stored via keyring. I believe I am following the documentation but pip neither uses the keyring credentials nor displays an error and instead just prompts for username/password.

$ which pip
/home/timo/python_venvs/my_venv/bin/pip
$ which keyring
/home/timo/python_venvs/my_venv/bin/keyring
$ echo <MY_TOKEN> | keyring set https://gitlab.com/api/v4/groups/<MY_GROUP_ID>/-/packages/pypi/simple <MY_TOKEN_NAME>
$ pip install --keyring-provider import -i https://gitlab.com/api/v4/groups/<MY_GROUP_ID>/-/packages/pypi/simple <MY_PACKAGE>
User for gitlab.com:
...

Expected behavior

pip uses the credentials stored in keyring.

pip version

24.0

Python version

3.10.12

OS

Ubuntu 22.04.4 LTS

How to Reproduce

1. Install pip and keyring
2. Create a GitLab package registry and upload a Python package to it
3. Create a GitLab access token with read_api rights
4. Store the token via keyring
5. Run pip install --keyring-provider import -i https://gitlab.com/api/v4/groups/<MY_GROUP_ID>/-/packages/pypi/simple <MY_PACKAGE>

Output

No response

Code of Conduct

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