Bug 2431586 - argparse-manpage fails to build with Python 3.15: AttributeError: '_ManpageFormatter' object has no attribute '_theme'. Did you mean: 'of._theme'?
Summary: argparse-manpage fails to build with Python 3.15: AttributeError: '_ManpageFo...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: argparse-manpage
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Pavel Raiskup
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: PYTHON3.15
TreeView+ depends on / blocked
 
Reported: 2026-01-21 11:49 UTC by Karolina Surma
Modified: 2026-05-16 09:26 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Karolina Surma 2026-01-21 11:49:33 UTC
argparse-manpage fails to build with Python 3.15.0a5.

  generating man/argparse-manpage.1
  Traceback (most recent call last):
    File "/usr/lib/python3.15/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 389, in <module>
      main()
      ~~~~^^
    File "/usr/lib/python3.15/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 373, in main
      json_out["return_val"] = hook(**hook_input["kwargs"])
                               ~~~~^^^^^^^^^^^^^^^^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 280, in build_wheel
      return _build_backend().build_wheel(
             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
          wheel_directory, config_settings, metadata_directory
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      )
      ^
    File "/usr/lib/python3.15/site-packages/setuptools/build_meta.py", line 435, in build_wheel
      return _build(['bdist_wheel', '--dist-info-dir', str(metadata_directory)])
    File "/usr/lib/python3.15/site-packages/setuptools/build_meta.py", line 423, in _build
      return self._build_with_temp_dir(
             ~~~~~~~~~~~~~~~~~~~~~~~~~^
          cmd,
          ^^^^
      ...<3 lines>...
          self._arbitrary_args(config_settings),
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      )
      ^
    File "/usr/lib/python3.15/site-packages/setuptools/build_meta.py", line 404, in _build_with_temp_dir
      self.run_setup()
      ~~~~~~~~~~~~~~^^
    File "/usr/lib/python3.15/site-packages/setuptools/build_meta.py", line 512, in run_setup
      super().run_setup(setup_script=setup_script)
      ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/build_meta.py", line 317, in run_setup
      exec(code, locals())
      ~~~~^^^^^^^^^^^^^^^^
    File "<string>", line 29, in <module>
    File "/usr/lib/python3.15/site-packages/setuptools/__init__.py", line 115, in setup
      return distutils.core.setup(**attrs)
             ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/core.py", line 186, in setup
      return run_commands(dist)
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/core.py", line 202, in run_commands
      dist.run_commands()
      ~~~~~~~~~~~~~~~~~^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/dist.py", line 1002, in run_commands
      self.run_command(cmd)
      ~~~~~~~~~~~~~~~~^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/dist.py", line 1102, in run_command
      super().run_command(command)
      ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/dist.py", line 1021, in run_command
      cmd_obj.run()
      ~~~~~~~~~~~^^
    File "/usr/lib/python3.15/site-packages/setuptools/command/bdist_wheel.py", line 370, in run
      self.run_command("build")
      ~~~~~~~~~~~~~~~~^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/cmd.py", line 357, in run_command
      self.distribution.run_command(command)
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/dist.py", line 1102, in run_command
      super().run_command(command)
      ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/dist.py", line 1021, in run_command
      cmd_obj.run()
      ~~~~~~~~~~~^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/command/build.py", line 135, in run
      self.run_command(cmd_name)
      ~~~~~~~~~~~~~~~~^^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/cmd.py", line 357, in run_command
      self.distribution.run_command(command)
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/dist.py", line 1102, in run_command
      super().run_command(command)
      ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/dist.py", line 1021, in run_command
      cmd_obj.run()
      ~~~~~~~~~~~^^
    File "/builddir/build/BUILD/argparse-manpage-4.7-build/argparse_manpage-4.7/build_manpages/build_manpages.py", line 151, in run
      self.run_command(DEFAULT_CMD_NAME)
      ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/cmd.py", line 357, in run_command
      self.distribution.run_command(command)
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/dist.py", line 1102, in run_command
      super().run_command(command)
      ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
    File "/usr/lib/python3.15/site-packages/setuptools/_distutils/dist.py", line 1021, in run_command
      cmd_obj.run()
      ~~~~~~~~~~~^^
    File "/builddir/build/BUILD/argparse-manpage-4.7-build/argparse_manpage-4.7/build_manpages/build_manpages.py", line 131, in run
      write_to_filename(str(manpage), page)
                        ~~~^^^^^^^^^
    File "/builddir/build/BUILD/argparse-manpage-4.7-build/argparse_manpage-4.7/argparse_manpage/manpage.py", line 249, in __str__
      lines.extend(self.mf.format_parser(self.parser, extra_description=extra_description))
                   ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/builddir/build/BUILD/argparse-manpage-4.7-build/argparse_manpage-4.7/argparse_manpage/manpage.py", line 459, in format_parser
      return self._format_parser(parser, extra_description=extra_description)
             ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    File "/builddir/build/BUILD/argparse-manpage-4.7-build/argparse_manpage-4.7/argparse_manpage/manpage.py", line 445, in _format_parser
      ag_lines = self._format_action_group(group, subcommand)
    File "/builddir/build/BUILD/argparse-manpage-4.7-build/argparse_manpage-4.7/argparse_manpage/manpage.py", line 571, in _format_action_group
      content.extend(self._format_action(action))
                     ~~~~~~~~~~~~~~~~~~~^^^^^^^^
    File "/builddir/build/BUILD/argparse-manpage-4.7-build/argparse_manpage-4.7/argparse_manpage/manpage.py", line 470, in _format_action
      help_text = self.of._format_text(self._expand_help(action)).strip('\n')
                                       ~~~~~~~~~~~~~~~~~^^^^^^^^
    File "/usr/lib64/python3.15/argparse.py", line 692, in _expand_help
      t = self._theme
          ^^^^^^^^^^^
  AttributeError: '_ManpageFormatter' object has no attribute '_theme'. Did you mean: 'of._theme'?

https://docs.python.org/3.15/whatsnew/3.15.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.15/fedora-rawhide-x86_64/10038360-argparse-manpage/

For all our attempts to build argparse-manpage with Python 3.15, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.15/package/argparse-manpage/

Testing and mass rebuild of packages is happening in copr.
You can follow these instructions to test locally in mock if your package builds with Python 3.15:
https://copr.fedorainfracloud.org/coprs/g/python/python3.15/

Let us know here if you have any questions.

Python 3.15 is planned to be included in Fedora 45.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.15.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires),
so if this package is required a lot, it's important for us to get it fixed soon.

We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work around it on our side.

Comment 1 Alex Muir 2026-05-16 09:26:26 UTC
Hi there, 

I submitted an issue upstream: https://github.com/praiskup/argparse-manpage/issues/129
And a PR: https://github.com/praiskup/argparse-manpage/pull/130


Note You need to log in before you can comment on or make changes to this bug.