Authentication for private registries

[juan-abia]

Hello! thanks of all, thanks for your awesome work at astral-sh!

I'm trying to use uv to publish to a private registry (cloudsmith). But I'm getting Unauthorized error. The same token is working using poetry. Here is the line I execute:

uv publish --verbose --publish-url https://python.cloudsmith.io/<my_org>/pip/ --token <cloudsmith_api_key> <my_package>.tar.gz

Here is the output:

DEBUG uv 0.4.20
warning: `uv publish` is experimental and may change without warning
Publishing 1 file to https://python.cloudsmith.io/<my_org>/pip/
DEBUG Using request timeout of 900s
Uploading <my_package>.tar.gz (279.2KiB)
DEBUG Using username/password basic auth
DEBUG Response code for https://python.cloudsmith.io/<my_org>/pip/: 401 Unauthorized
DEBUG Upload error response: {"detail": "Authentication credentials were not provided."}
error: Failed to publish `<my_package>.tar.gz` to https://python.cloudsmith.io/<my_org>/pip/
  Caused by: Upload failed with status code 401 Unauthorized. Server says: {"detail": "Authentication credentials were not provided."}

I've tried using the UV_PUBLISH_TOKEN env var. And also using username as token and the api key as the password.

Could you please add compatibility with cloudsmith? TY!

[astrojuanlu]

@juan-abia Does it work if you configure a .netrc file?

$ cat ~/.netrc
machine python.cloudsmith.io
  login LOGIN
  password TOKEN

[juan-abia]

Doesn't work @astrojuanlu :(
I also updated to verion 0.4.22 and no luck

[lskillen]

Hey folks 👋 I'm representing the Cloudsmith team here, so I'm happy to help diagnose from our side, too.

We also utilize uv (and ruff too, actually) at Cloudsmith extensively, so we'd be delighted to offer support. :)

If you need a free account to test out, just let us know, too. Cheers!

[charliermarsh]

Thank you so much @lskillen -- really appreciate that! A test account would be super useful. I'll let @konstin follow up.

[konstin]

Hi @lskillen! We'd love to collaborate with you on this, and a test account would be great! You can reach me at [email protected] (or on discord as konsti2849) for coordinating the details.

[lskillen]

Sounds good, I'll drop you an email and intro you to our team. :)

[konstin]

@astrojuanlu For cloudsmith, you need to use username and password authentication: For the username, use your username or token, the password is your token. For --token we use the PyPI default of __token__, which mismatches with the cloudsmith token.

[juan-abia]

@konstin just confirmed that using token works

[konstin]

Cloudsmith updated their backend to also allow __token__, so you can now publish with --token, too. Shoutout to the cloudsmith team for adding this so quickly!

[lskillen]

Glad it worked. 😁 Happy to be included on a list if one ever exists of "Supported services that work". 😆

[juan-abia]

Thanks a lot team! closing the issue