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

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From: Lars-Dominik Braun <lars <at> 6xq.net>
To: Ian Eure <ian <at> retrospec.tv>
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 07:28:49 +0100

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.

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).

Lars

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