Bug 2481417

Summary: ansible-lint fails to build with Python 3.15: ImportError: cannot import name '_MISSING_TYPE' from 'dataclasses' (/usr/lib64/python3.15/dataclasses.py)
Product: [Fedora] Fedora Reporter: Karolina Surma <ksurma>
Component: ansible-lintAssignee: Parag Nemade <pnemade>
Status: CLOSED WORKSFORME QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: fti-bugs, ksurma, maxwell, mhroncok, pnemade
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Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: ---
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Clone Of: Environment:
Last Closed: 2026-06-21 20:44:32 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Embargoed:
Bug Depends On:    
Bug Blocks: 2412434, 2433833, 2433836    

Description Karolina Surma 2026-05-26 10:05:32 UTC
ansible-lint fails to build with Python 3.15.0b1.

Check import: ansiblelint.cli
Traceback (most recent call last):
  File "/usr/lib/rpm/redhat/import_all_modules.py", line 106, in import_modules
    importlib.import_module(module)
    ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
  File "/usr/lib64/python3.15/importlib/__init__.py", line 88, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1381, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1346, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1305, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 915, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 747, in exec_module
  File "<frozen importlib._bootstrap>", line 549, in _call_with_frames_removed
  File "/builddir/build/BUILD/ansible-lint-26.4.0-build/BUILDROOT/usr/lib/python3.15/site-packages/ansiblelint/cli.py", line 30, in <module>
    from ansiblelint.yaml_utils import clean_json
  File "/builddir/build/BUILD/ansible-lint-26.4.0-build/BUILDROOT/usr/lib/python3.15/site-packages/ansiblelint/yaml_utils.py", line 37, in <module>
    from ansiblelint.utils import Task
  File "/builddir/build/BUILD/ansible-lint-26.4.0-build/BUILDROOT/usr/lib/python3.15/site-packages/ansiblelint/utils.py", line 42, in <module>
    from dataclasses import _MISSING_TYPE, dataclass, field
ImportError: cannot import name '_MISSING_TYPE' from 'dataclasses' (/usr/lib64/python3.15/dataclasses.py)

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-b1/fedora-rawhide-x86_64/10510340-ansible-lint/

For all our attempts to build ansible-lint with Python 3.15, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.15-b1/package/ansible-lint/

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-b1/

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 Karolina Surma 2026-06-06 18:19:25 UTC
*** Bug 2485687 has been marked as a duplicate of this bug. ***

Comment 2 Fedora Fails To Install 2026-06-14 08:32:18 UTC
Hello,

Please note that this comment was generated automatically by https://forge.fedoraproject.org/releng/tooling/src/branch/main/release-process/bug-filing/follow-policy/follow_policy.py
If you feel that this output has mistakes, please open an issue at https://forge.fedoraproject.org/releng/tickets/issues

This package fails to install and maintainers are advised to take one of the following actions:

 - Fix this bug and close this bugzilla once the update makes it to the repository.
   (The same script that posted this comment will eventually close this bugzilla
   when the fixed package reaches the repository, so you don't have to worry about it.)

or

 - Move this bug to ASSIGNED if you plan on fixing this, but simply haven't done so yet.

or

 - Orphan the package if you no longer plan to maintain it.


If you do not take one of these actions, the process at https://docs.fedoraproject.org/en-US/fesco/Fails_to_build_from_source_Fails_to_install/#_package_removal_for_long_standing_ftbfs_and_fti_bugs will continue.
This package may be orphaned in 7+ weeks.
This is the first reminder (step 3) from the policy.

Don't hesitate to ask for help on https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/ if you are unsure how to fix this bug.

Comment 3 Fedora Fails To Install 2026-06-21 20:44:32 UTC
Hello,

Please note that this comment was generated automatically by https://forge.fedoraproject.org/releng/tooling/src/branch/main/release-process/bug-filing/follow-policy/follow_policy.py
If you feel that this output has mistakes, please open an issue at https://forge.fedoraproject.org/releng/tickets/issues

All subpackages of a package against which this bug was filled are now installable or removed from Fedora 45.

Thanks for taking care of it!