support PEP 735 "peerDependencies"

[Eliav2]

What's the problem this feature will solve?

pep 735, which based on my understanding, is currently a draft, introduces "peerDependencies" field.

I could not find any docs about possible support or implementation for pip in this PEP so i opened an issue.

does peerDependencies is going to be supported soon? i wonder cause i'm going to publish a package python and i wonder if i should stick with dependencies and use wide range of versions for my actual peer dependencies and use peerDependencies as pep735 suggest.

Describe the solution you'd like

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Alternative Solutions

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Additional context

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Code of Conduct

• I agree to follow the PSF Code of Conduct.

[notatallshaw]

Thanks for inquiring, however the only reference to peerDependencies in PEP 735, at least as I read it, is talking about prior art in other languages and not something for Python packaging to directly implement: https://peps.python.org/pep-0735/#appendix-a-prior-art-in-non-python-languages.

The main specification only defines a new dependency-groups section to a pyproject.toml: https://peps.python.org/pep-0735/#specification

You can follow PEP 735 discussion and implementation in #12963 and #13065 respectively.