Hi!

While rebuilding the python related packages against the Python 3.15rc2
version we found that sphinx-toolbox fails to build from source [1].

It fails with the following error: ModuleNotFoundError: No module named
'sre_parse'. Did you mean: 'argparse'?

This is because sre_parse was deprecated in python 3.11, and removed in
python 3.15.

I've added a patch that uses re._parser and re._constants instead. And
applied the fix in the sandbox [2], to be able to build the packages
that depend on sphinx-toolbox, please consider applying the patch to
support the upcoming 3.15 version.

Setting the severity to important for now. Once Python 3.15 is released,
it will be added to python3-defaults and this bug will become release
critical.

Happy hacking,

[1]: https://debusine.debian.net/debian/r-python-python3.15/artifact/4545233/
[2]: https://debusine.debian.net/debian/r-python-python3.15/

We believe that the bug you reported is fixed in the latest version of
sphinx-toolbox, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1146870@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Alexandre Detiste <tchet@debian.org> (supplier of updated sphinx-toolbox package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 05 Oct 2026 12:39:25 +0200
Source: sphinx-toolbox
Architecture: source
Version: 4.3.1-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Python Team <team+python@tracker.debian.org>
Changed-By: Alexandre Detiste <tchet@debian.org>
Closes: 1146870
Changes:
 sphinx-toolbox (4.3.1-1) unstable; urgency=medium
 .
   * Team upload.
   * Add debian/salsa-ci.yml
   * d/watch: use dedicated GitHub template
   * New upstream version 4.3.1
   * update d/py3dist-overrides: sphinx_jinja2_compat is not needed anymore
   * Move python3-whey to Build-Depends
     to make it obvious that it is the build engine
 .
   [ Maximiliano Curia ]
   * Add a patch to support Python 3.15 (Closes: #1146870)
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