extra-index-url is not taken into account if package exists in the index-url

[atti92]

If you have a package in a private repository and you add it as an extra-index-url, the resolver will throw conflict errors

uv pip compile requirements.txt
  × No solution found when resolving dependencies:
  ╰─▶ Because only the following versions of mypkg are available:
          mypkg<1.0.0rc6
          mypkg>=1.1.dev0
      and you require mypkg>=1.0.0rc6,<1.1.dev0, we can conclude that the requirements are unsatisfiable.

In my case pypi had 1 yanked version (0.0.0a1) and all valid versions are in the private repo.

This behaviour is contrary to pip because it can still find requirements in the extra-index-url.

workaround that works:

• set pypi as extra-index-url
• set private repo as index-url

---

• The command you invoked: uv pip compile requirements.txt
• The current uv platform: Ubuntu 22.04.1
• The current uv version: 0.1.11

[charliermarsh]

Thanks! This is the same as #1377.