Note that in Unstable, we use Python 3.13. However, if you install
Python 3.14 and use that as your system defaults (NOT advised), you will
replicate this error.

This issue was originally discovered because downstream in Ubuntu for
Ubuntu 26.04 development cycle, we use Python 3.14 down there. Thus
showing the Python 3.14 issues here.
---

When trying to run `galternatives` in a Python 3.14 environment, we are
met with the following crash and failure to execute the software:

Traceback (most recent call last):
   File "/usr/bin/galternatives", line 6, in <module>
     runpy.run_module('galternatives', run_name='__main__')
     ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "<frozen runpy>", line 229, in run_module
   File "<frozen runpy>", line 88, in _run_code
   File "/usr/lib/python3/dist-packages/galternatives/__main__.py", line
12, in <module>
     from galternatives.app import GAlternativesApp
   File "/usr/lib/python3/dist-packages/galternatives/app.py", line 19,
in <module>
     from .alternative import AltDB, AltGroup, AltOption, CommandResult
   File "/usr/lib/python3/dist-packages/galternatives/alternative.py",
line 55, in <module>
     class AltOption(dict[str, str]):
     ...<71 lines>...
                 for i in range(len(group)))
   File "/usr/lib/python3/dist-packages/galternatives/alternative.py",
line 65, in AltOption
     __slots__ = tuple(__annotations__)
                       ^^^^^^^^^^^^^^^
NameError: name '__annotations__' is not defined

---

Upon examination of Python Best Practices [1], it is suggested that
`annotationlib.get_annotations()` be used wherever a direct
`__annotations__` reference is made.

However, this cannot be done bare, it has to refer to the object itself.
Additionally, __annotations__ isn't defined by default for classes
anymore, and thus attempting to set `__slots__` before instantiation
with `__init__` does not work.

Downstream, and after an hour of poking, changes to set `__slots__`
during initialization made it capable to fix this issue.

A patch via Merge Request has been made available on Salsa, without
d/changelog entries. [2]


Thomas


[1]: https://docs.python.org/3/howto/annotations.html

[2]: https://salsa.debian.org/chinese-team/galternatives/-/merge_requests/1

We believe that the bug you reported is fixed in the latest version of
galternatives, 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 1134570@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Boyuan Yang <byang@debian.org> (supplier of updated galternatives 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: Sun, 28 Jun 2026 13:08:23 -0400
Source: galternatives
Architecture: source
Version: 1.0.11
Distribution: unstable
Urgency: medium
Maintainer: Debian Chinese Team <chinese-developers@lists.alioth.debian.org>
Changed-By: Boyuan Yang <byang@debian.org>
Closes: 1134570
Changes:
 galternatives (1.0.11) unstable; urgency=medium
 .
   * New upstream release. (Closes: #1134570)
   * debian/: Bump debhelper compat to v14, Standards-Version 4.7.4.
   * debian/lintian-overrides: Rename to galternatives.lintian-overrides.
   * debian/manpages: Rename to galternatives.manpages.
   * debian/copyright: Update to use SPDX short names.
   * Merge select changes from Ubuntu:
 .
   [ Thomas Ward ]
   * d/rules: Add PEP440_VERSION definition that alters the VERSION
     string to provide a PEP440 compliant string that works with
     pybuild and setuptools. Fixes FTBFS from build1 and the
     introduction of ubuntu1 in the version string for PEP440
     compliance.
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