Hi,

This package fails to build a source package after a successful build
(dpkg-buildpackage ; dpkg-buildpackage -S).

This is probably a clear violation of Debian Policy section 4.9 (clean target),
but this is filed as severity:minor for now, because a discussion on
debian-devel showed that we might want to revisit the requirement of a working
'clean' target.

More information about this class of issues, included common problems and
solutions, is available at
https://wiki.debian.org/qa.debian.org/FTBFS/SourceAfterBuild

Relevant part of the build log:
The full build log is available from:
http://qa-logs.debian.net/2023/08/13/matplotlib_3.6.3-1_unstable.log

If you reassign this bug to another package, please mark it as 'affects'-ing
this package. See https://www.debian.org/Bugs/server-control#affects

If you fail to reproduce this, please provide a build log and diff it with mine
so that we can identify if something relevant changed in the meantime.

Hello,

Bug #1047769 in matplotlib reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/python-team/packages/matplotlib/-/commit/651c18c6b3ce260da5b1eb6aa6ea9ca8a828ad56
------------------------------------------------------------------------
update debian/clean to remove generated files

Closes: #1047769
------------------------------------------------------------------------

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1047769

We believe that the bug you reported is fixed in the latest version of
matplotlib, 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 1047769@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Drew Parsons <dparsons@debian.org> (supplier of updated matplotlib 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, 24 Jun 2024 17:59:57 +0200
Source: matplotlib
Binary: python-matplotlib-data python-matplotlib-doc python3-matplotlib python3-matplotlib-dbgsym
Architecture: source all amd64
Version: 3.8.3-2~exp1
Distribution: experimental
Urgency: medium
Maintainer: Debian Python Team <team+python@tracker.debian.org>
Changed-By: Drew Parsons <dparsons@debian.org>
Description:
 python-matplotlib-data - Python based plotting system (data package)
 python-matplotlib-doc - Python based plotting system (documentation package)
 python3-matplotlib - Python based plotting system in a style similar to Matlab
Closes: 1047769
Changes:
 matplotlib (3.8.3-2~exp1) experimental; urgency=medium
 .
   * Team upload.
   * Reinstate python-matplotlib-doc
     - Build-Depends-Indep: python3-ipykernel, python3-sphinx-design,
       python3-yaml <!nodoc>
     - clean doc/build and doc/fontlist-v*.json
   * debian patch manage_docs.patch enables a successful doc build
     - skip 3d and Axes gallery examples (can't import new mpl_toolkits
       successfully when system package of old version is installed,
       see Bug#1074159)
     - deactivate copyfile_regex (not available in sphinx_gallery)
     - theme-switcher, version-switcher are not available
     - add missing README files
   * update debian/clean to remove generated files. Closes: #1047769.
   * skip build tests if nocheck is set in DEB_BUILD_OPTIONS
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Files:
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