deps: bump the dev-deps group across 1 directory with 3 updates

[dependabot]

Bumps the dev-deps group with 3 updates in the / directory: pytest, mypy and pre-commit.

Updates pytest from 8.4.2 to 9.0.1

Release notes

Sourced from pytest's releases.

9.0.1

pytest 9.0.1 (2025-11-12)

Bug fixes

• #13895: Restore support for skipping tests via raise unittest.SkipTest.
• #13896: The terminal progress plugin added in pytest 9.0 is now automatically disabled when iTerm2 is detected, it generated desktop notifications instead of the desired functionality.
• #13904: Fixed the TOML type of the verbosity settings in the API reference from number to string.
• #13910: Fixed UserWarning: Do not expect file_or_dir on some earlier Python 3.12 and 3.13 point versions.

Packaging updates and notes for downstreams

• #13933: The tox configuration has been adjusted to make sure the desired version string can be passed into its package_env through the SETUPTOOLS_SCM_PRETEND_VERSION_FOR_PYTEST environment variable as a part of the release process -- by webknjaz.

Contributor-facing changes

• #13891, #13942: The CI/CD part of the release automation is now capable of creating GitHub Releases without having a Git checkout on disk -- by bluetech and webknjaz.
• #13933: The tox configuration has been adjusted to make sure the desired version string can be passed into its package_env through the SETUPTOOLS_SCM_PRETEND_VERSION_FOR_PYTEST environment variable as a part of the release process -- by webknjaz.

9.0.0

pytest 9.0.0 (2025-11-05)

New features

• #1367: Support for subtests has been added.

  subtests <subtests> are an alternative to parametrization, useful in situations where the parametrization values are not all known at collection time.

  Example:

  def contains_docstring(p: Path) -> bool:
      """Return True if the given Python file contains a top-level docstring."""
      ...
  def test_py_files_contain_docstring(subtests: pytest.Subtests) -> None:
  for path in Path.cwd().glob("*.py"):
  with subtests.test(path=str(path)):
  assert contains_docstring(path)

... (truncated)

Commits

• d1b64aa Prepare release version 9.0.1
• 0a497c7 regendoc: remove CI environment variables (#13950) (#13951)
• a9f7e6e 🧪 Run gh release w/o Git in CI/CD (#13942) (#13947)
• 2682a66 Merge pull request #13944 from pytest-dev/patchback/backports/9.0.x/bef7d34f1...
• a999997 Merge pull request #13941 from nicoddemus/min-pre-commit-version
• 4bd63a0 Merge pull request #13935 from pytest-dev/patchback/backports/9.0.x/ce8b8a7b4...
• 15f93b3 Merge pull request #13933 from webknjaz/maintenance/tox-pep517-env-setuptools...
• 0fa11ae Merge pull request #13927 from pytest-dev/patchback/backports/9.0.x/3d8075743...
• fa45470 Merge pull request #13926 from pytest-dev/patchback/backports/9.0.x/d587e0cf8...
• b4e3973 Merge pull request #13922 from bluetech/fix-argparse-userwarning
• Additional commits viewable in compare view

Updates mypy from 1.18.2 to 1.19.0

Changelog

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Drop Support for Python 3.9

Mypy no longer supports running with Python 3.9, which has reached end-of-life. When running mypy with Python 3.10+, it is still possible to type check code that needs to support Python 3.9 with the --python-version 3.9 argument. Support for this will be dropped in the first half of 2026!

Contributed by Marc Mueller (PR 20156).

Mypy 1.19

We’ve just uploaded mypy 1.19.0 to the Python Package Index (PyPI). Mypy is a static type checker for Python. This release includes new features, performance improvements and bug fixes. You can install it as follows:

python3 -m pip install -U mypy

You can read the full documentation for this release on Read the Docs.

Python 3.9 Support Ending Soon

This is the last mypy feature release that supports Python 3.9, which reached end of life in October 2025.

Performance Improvements

• Switch to a more dynamic SCC processing logic (Ivan Levkivskyi, PR 20053)
• Speed up type aliases (Ivan Levkivskyi, PR 19810)

Fixed‑Format Cache Improvements

Mypy uses a cache by default to speed up incremental runs by reusing partial results from earlier runs. Mypy 1.18 added a new binary fixed-format cache representation as an experimental feature. The feature is no longer experimental, and we are planning to enable it by default in a future mypy release (possibly 1.20), since it's faster and uses less space than the original, JSON-based cache format. Use --fixed-format-cache to enable the fixed-format cache.

Mypy now has an extra dependency on the librt PyPI package, as it's needed for cache serialization and deserialization.

Mypy ships with a tool to convert fixed-format cache files to the old JSON format. Example of how to use this:

$ python -m mypy.exportjson .mypy_cache/.../my_module.data.ff

... (truncated)

Commits

• 0f068c9 Remove +dev
• 6d5cf52 Various updates to 1.19 changelog (#20304)
• 3c81308 Add draft version of 1.19 release notes (#20296)
• 1999a20 [mypyc] librt base64: use existing SIMD CPU dispatch by customizing build fla...
• 1b94fbb [mypyc] Fix vtable pointer with inherited dunder new (#20302)
• 13369cb [mypyc] Fix crash on super in generator (#20291)
• a087a58 Update import map when new modules added (#20271)
• 35e843c [mypyc] Add efficient librt.base64.b64decode (#20263)
• 094f66d [mypyc] Add repr to AssignmentTarget subclasses (#20258)
• 0738db3 Do not push partial types to the binder (#20202)
• Additional commits viewable in compare view

Updates pre-commit from 4.3.0 to 4.5.0

Release notes

Sourced from pre-commit's releases.

pre-commit v4.5.0

Features

• Add pre-commit hazmat.
  • #3585 PR by @​asottile.

pre-commit v4.4.0

Features

• Add --fail-fast option to pre-commit run.
  • #3528 PR by @​JulianMaurin.
• Upgrade ruby-build / rbenv.
  • #3566 PR by @​asottile.
  • #3565 issue by @​MRigal.
• Add language: unsupported / language: unsupported_script as aliases for language: system / language: script (which will eventually be deprecated).
  • #3577 PR by @​asottile.
• Add support docker-in-docker detection for cgroups v2.
  • #3535 PR by @​br-rhrbacek.
  • #3360 issue by @​JasonAlt.

Fixes

• Handle when docker gives SecurityOptions: null.
  • #3537 PR by @​asottile.
  • #3514 issue by @​jenstroeger.
• Fix error context for invalid stages in .pre-commit-config.yaml.
  • #3576 PR by @​asottile.

Changelog

Sourced from pre-commit's changelog.

4.5.0 - 2025-11-22

Features

• Add pre-commit hazmat.
  • #3585 PR by @​asottile.

4.4.0 - 2025-11-08

Features

• Add --fail-fast option to pre-commit run.
  • #3528 PR by @​JulianMaurin.
• Upgrade ruby-build / rbenv.
  • #3566 PR by @​asottile.
  • #3565 issue by @​MRigal.
• Add language: unsupported / language: unsupported_script as aliases for language: system / language: script (which will eventually be deprecated).
  • #3577 PR by @​asottile.
• Add support docker-in-docker detection for cgroups v2.
  • #3535 PR by @​br-rhrbacek.
  • #3360 issue by @​JasonAlt.

Fixes

• Handle when docker gives SecurityOptions: null.
  • #3537 PR by @​asottile.
  • #3514 issue by @​jenstroeger.
• Fix error context for invalid stages in .pre-commit-config.yaml.
  • #3576 PR by @​asottile.

Commits

• 1af6c8f v4.5.0
• 3358a3b Merge pull request #3585 from pre-commit/hazmat
• bdf6879 add pre-commit hazmat
• e436690 Merge pull request #3584 from pre-commit/exitstack
• 8d34f95 use ExitStack instead of start + stop
• 9c7ea88 Merge pull request #3583 from pre-commit/forward-compat-map-manifest
• 844dacc add forward-compat error message
• 6a1d543 Merge pull request #3582 from pre-commit/move-gc-back
• 66278a9 move logic for gc back to commands.gc
• 1b32c50 Merge pull request #3579 from pre-commit/pre-commit-ci-update-config
• Additional commits viewable in compare view

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