Hi!

While rebuilding the python related packages against the Python 3.15rc2
version we found that cdlclient fails to build from source:
https://debusine.debian.net/debian/r-python-python3.15/artifact/4856091/

 From the log, the error seems to be:

   Traceback (most recent call last):
     File "/usr/lib/python3/dist-packages/pyproject_hooks/_impl.py", line
399, in _call_hook
       raise BackendUnavailable(
       ...<4 lines>...
       )
   pyproject_hooks._impl.BackendUnavailable: Cannot import
'setuptools.build_meta'

   TIP pass --env-dir and […] for help debugging a failed build
   ERROR Backend 'setuptools.build_meta' is not available.

I suspect that this issue can be solved by adding a build-dependency on
python3-setuptools.

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

We believe that the bug you reported is fixed in the latest version of
cdlclient, 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 1149378@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 cdlclient 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: Wed, 30 Sep 2026 15:52:30 +0200
Source: cdlclient
Architecture: source
Version: 0.10.1-3
Distribution: unstable
Urgency: medium
Maintainer: Debian PaN Maintainers <debian-pan-maintainers@alioth-lists.debian.net>
Changed-By: Alexandre Detiste <tchet@debian.org>
Closes: 1149378 1149407
Changes:
 cdlclient (0.10.1-3) unstable; urgency=medium
 .
   * Team Upload
   * Add build-dep on python3-setuptools (Closes: #1149407, #1149378)
   * Add debian/salsa-ci.yml
   * Rewrite d/watch in v5 format
   * Use dh-sequence-python3
   * Drop "Rules-Requires-Root: no": it is the default now
   * Bump Standards-Version: to 4.7.4, drop Priority: tag
Checksums-Sha1:
 501d7b1b88174ef6a23ba8f35e1bf6d9310a4625 2206 cdlclient_0.10.1-3.dsc
 905c89eda182ad3a0d90bf76c6547e0d6387d6a8 2832 cdlclient_0.10.1-3.debian.tar.xz
 02482d3653782ffcf2061abaf4c8342cf31ae7d2 6501 cdlclient_0.10.1-3_source.buildinfo
Checksums-Sha256:
 3b07377a65f5d3d9fb8ad31e74fb2f7e10eab676721bd32a5f76e5968e7484cd 2206 cdlclient_0.10.1-3.dsc
 1b48d6f3b03202ba5c81e278ee0e140d129056bf371ec94a62b19c849cef815b 2832 cdlclient_0.10.1-3.debian.tar.xz
 d847f0dfb8c189209305f3c77625a3735152ffaf276eabc2689602ed2a8e4201 6501 cdlclient_0.10.1-3_source.buildinfo
Files:
 81edadaa687bf4aa2e8e6831139ca34e 2206 python optional cdlclient_0.10.1-3.dsc
 bee60aa7b166f3945bd179f19abe9641 2832 python optional cdlclient_0.10.1-3.debian.tar.xz
 7fcda82dd86ac47503d229f866fcd5c1 6501 python optional cdlclient_0.10.1-3_source.buildinfo
-----BEGIN PGP SIGNATURE-----
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=SG3+
-----END PGP SIGNATURE-----