GNU bug report logs - #74715
Request for merging "python-team" branch

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From: "Ian Eure" <ian <at> retrospec.tv>
To: "Lars-Dominik Braun" <lars <at> 6xq.net>
Cc: Sharlatan Hellseher <sharlatanus <at> gmail.com>, me <at> bonfacemunyoki.com, Ludovic Courtès <ludo <at> gnu.org>, jgart <jgart <at> dismail.de>, 74715 <at> debbugs.gnu.org, marius <at> gnu.org, guix-devel <at> gnu.org, tanguy <at> bioneland.org
Subject: [bug#74715] Request for merging "python-team" branch
Date: Sun, 15 Dec 2024 17:53:07 +0000

Hi Lars-Dominik,

On Sun, Dec 15, 2024, at 6:28 AM, Lars-Dominik Braun wrote:
> Hi Ian,
>
>> Since this merge landed, the builds for several Python packages in my personal channel broke.  Any package using pyproject-build-system for a Python project using setuptools seems to be affected.
>
> as Sharlatan Hellseher wrote in https://issues.guix.gnu.org/issue/74715#4,
> you need to add python-setuptools and python-wheel to your
> setuptools-based packages. The default python toolchain used by
> pyproject-build-system (python-sans-pip-wrapper from
> gnu/packages/python.scm) does not include these packages any more,
> since they are technically not required and declaring them as *real*
> inputs allows using different versions of these packages more easily
> for packages, which require them. Plus there are quite a few packages,
> which build using different build systems nowadays.
>

Thanks, this worked for me.  I skimmed the related bug, but missed this comment.  I think the docs for pyproject-build-system are likely the best place for this, as they already mention some of the setuptools/pyproject interaction.  I sent a patch (#74899) with some draft language, let me know what you think.

> The python importer should probably be updated to read pyproject.toml
> and parse the [build-system] table (there is a toml parser in Guix now,
> so this should be easy).
>

Would it be helpful to open a bug about this?

Thanks,

  -- Ian

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