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

[dependabot]

Updates the requirements on pytest, pytest-cov and mypy to permit the latest version.
Updates pytest to 9.1.0

Release notes

Sourced from pytest's releases.

9.1.0

pytest 9.1.0 (2026-06-13)

Removals and backward incompatible breaking changes

• #14533: When using --doctest-modules, autouse fixtures with module, package or session scope that are defined inline in Python test modules (not plugins or conftests) will now possibly execute twice.

  If this is undesirable, move the fixture definition to a conftest.py file if possible.

  Technical explanation for those interested: When using --doctest-modules, pytest possibly collects Python modules twice, once as pytest.Module and once as a DoctestModule (depending on the configuration). Due to improvements in pytest's fixture implementation, if e.g. the DoctestModule collects a fixture, it is now visible to it only, and not to the Module. This means that both need to register the fixtures independently.

Deprecations (removal in next major release)

• #10819: Added a deprecation warning for class-scoped fixtures defined as instance methods (without @classmethod). Such fixtures set attributes on a different instance than the test methods use, leading to unexpected behavior. Use @classmethod decorator instead -- by yastcher.

  See 10819 and 14011.

• #12882: Calling request.getfixturevalue() <pytest.FixtureRequest.getfixturevalue> during teardown to request a fixture that was not already requested is now deprecated and will become an error in pytest 10.

  See dynamic-fixture-request-during-teardown for details.

• #13409: Using non-~collections.abc.Collection iterables (such as generators, iterators, or custom iterable objects) for the argvalues parameter in @pytest.mark.parametrize <pytest.mark.parametrize ref> and metafunc.parametrize <pytest.Metafunc.parametrize> is now deprecated.

  These iterables get exhausted after the first iteration, leading to tests getting unexpectedly skipped in cases such as running pytest.main() multiple times, using class-level parametrize decorators, or collecting tests multiple times.

  See parametrize-iterators for details and suggestions.

• #13946: The private config.inicfg attribute is now deprecated. Use config.getini() <pytest.Config.getini> to access configuration values instead.

  See config-inicfg for more details.

• #14004: Passing baseid to ~pytest.FixtureDef or nodeid strings to fixture registration APIs is now deprecated. These are internal pytest APIs that are used by some plugins.

  Use the node parameter instead for fixture scoping. This enables more robust node-based matching instead of string prefix matching. If you've used nodeid=None, pass node=session instead.

  This will be removed in pytest 10.

• #14335: The method of configuring hooks using markers, deprecated since pytest 7.2, is now scheduled to be removed in pytest 10. See hook-markers for more details.

• #14434: The --pastebin option is now deprecated.

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Commits

• b2522cf Prepare release version 9.1.0
• 368d2fc [refactor] Tighten SetComparisonFunction to Iterator[str] (#14587)
• ff77cd8 [refactor] Make base assertion comparisons return an iterator instead of a li...
• 0d8491a build(deps): Bump actions/stale from 10.2.0 to 10.3.0
• 4a809d9 Merge pull request #14568 from pytest-dev/register-fixture
• 5dfa385 Fix recursion traceback test to cover all styles (#14582)
• f52ff0c Add pytest.register_fixture
• a8ac094 Merge pull request #14567 from pytest-dev/more-visibility-deprecate
• e5620cd [pre-commit.ci] pre-commit autoupdate (#14577)
• 2ce9c6d Merge pull request #14540 from minbang930/fix-14533-doctest-module-fixtures
• Additional commits viewable in compare view

Updates pytest-cov to 7.1.0

Changelog

Sourced from pytest-cov's changelog.

7.1.0 (2026-03-21)

• Fixed total coverage computation to always be consistent, regardless of reporting settings. Previously some reports could produce different total counts, and consequently can make --cov-fail-under behave different depending on reporting options. See [#641](https://github.com/pytest-dev/pytest-cov/issues/641) <https://github.com/pytest-dev/pytest-cov/issues/641>_.

• Improve handling of ResourceWarning from sqlite3.

  The plugin adds warning filter for sqlite3 ResourceWarning unclosed database (since 6.2.0). It checks if there is already existing plugin for this message by comparing filter regular expression. When filter is specified on command line the message is escaped and does not match an expected message. A check for an escaped regular expression is added to handle this case.

  With this fix one can suppress ResourceWarning from sqlite3 from command line::

  pytest -W "ignore:unclosed database in <sqlite3.Connection object at:ResourceWarning" ...

• Various improvements to documentation. Contributed by Art Pelling in [#718](https://github.com/pytest-dev/pytest-cov/issues/718) <https://github.com/pytest-dev/pytest-cov/pull/718>_ and "vivodi" in [#738](https://github.com/pytest-dev/pytest-cov/issues/738) <https://github.com/pytest-dev/pytest-cov/pull/738>. Also closed [#736](https://github.com/pytest-dev/pytest-cov/issues/736) <https://github.com/pytest-dev/pytest-cov/issues/736>.

• Fixed some assertions in tests. Contributed by in Markéta Machová in [#722](https://github.com/pytest-dev/pytest-cov/issues/722) <https://github.com/pytest-dev/pytest-cov/pull/722>_.

• Removed unnecessary coverage configuration copying (meant as a backup because reporting commands had configuration side-effects before coverage 5.0).

7.0.0 (2025-09-09)

• Dropped support for subprocesses measurement.

  It was a feature added long time ago when coverage lacked a nice way to measure subprocesses created in tests. It relied on a .pth file, there was no way to opt-out and it created bad interations with coverage's new patch system <https://coverage.readthedocs.io/en/latest/config.html#run-patch>_ added in 7.10 <https://coverage.readthedocs.io/en/7.10.6/changes.html#version-7-10-0-2025-07-24>_.

  To migrate to this release you might need to enable the suprocess patch, example for .coveragerc:

  .. code-block:: ini

  [run] patch = subprocess

  This release also requires at least coverage 7.10.6.

• Switched packaging to have metadata completely in pyproject.toml and use hatchling <https://pypi.org/project/hatchling/>_ for building. Contributed by Ofek Lev in [#551](https://github.com/pytest-dev/pytest-cov/issues/551) <https://github.com/pytest-dev/pytest-cov/pull/551>_ with some extras in [#716](https://github.com/pytest-dev/pytest-cov/issues/716) <https://github.com/pytest-dev/pytest-cov/pull/716>_.

• Removed some not really necessary testing deps like six.

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Commits

• 66c8a52 Bump version: 7.0.0 → 7.1.0
• f707662 Make the examples use pypy 3.11.
• 6049a78 Make context test use the old ctracer (seems the new sysmon tracer behaves di...
• 8ebf20b Update changelog.
• 861d30e Remove the backup context manager - shouldn't be needed since coverage 5.0, ...
• fd4c956 Pass the precision on the nulled total (seems that there's some caching goion...
• 78c9c4e Only run the 3.9 on older deps.
• 4849a92 Punctuation.
• 197c35e Update changelog and hopefully I don't forget to publish release again :))
• 14dc1c9 Update examples to use 3.11 and make the adhoc layout example look a bit more...
• Additional commits viewable in compare view

Updates mypy to 2.1.0

Changelog

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

Mypy 2.1

We’ve just uploaded mypy 2.1.0 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.

librt.vecs: Fast Growable Array Type for Mypyc

The new librt.vecs module provides an efficient growable array type vec that is optimized for mypyc use. It provides fast, packed arrays with integer and floating point value types, which can be several times faster than list, and tens of times faster than array.array in code compiled using mypyc. It also supports nested vec objects and non-value-type items, such as vec[vec[str]].

Refer to the documentation for the details.

Contributed by Jukka Lehtosalo.

librt.random: Fast Pseudo-Random Number Generation

The new librt.random module provides fast pseudo-random number generation that is optimized for code compiled using mypyc. It can be 3x to 10x faster than the stdlib random module in compiled code.

Refer to the documentation for the details.

Contributed by Jukka Lehtosalo (PR 21433).

Mypyc Improvements

• Enable incremental self-compilation (Vaggelis Danias, PR 21369)
• Make compilation order with multiple files consistent (Piotr Sawicki, PR 21419)
• Fix crash on accessing StopAsyncIteration (Piotr Sawicki, PR 21406)
• Fix incremental compilation with separate flag (Vaggelis Danias, PR 21299)

Fixes to Crashes

• Fix crash on partial type with --allow-redefinition and global declaration (Jukka Lehtosalo, PR 21428)
• Fix broken awaitable generator patching (Ivan Levkivskyi, PR 21435)

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Commits

• c1c336d Remove +dev from version
• 74df14b Add changelog for mypy 2.1 (#21464)
• 022d9bc Revert "TypeForm: Enable by default (#21262)"
• 8826288 [mypyc] Document librt.random (#21463)
• 3f4067b Bump librt version to 0.11.0 (#21458)
• 2b1eb58 [mypyc] Enable incremental self-compilation (#21369)
• 8152f4a Respect file config comments for stale modules (#21444)
• 116d60b Fix nondeterminism from nonassociativity of overload joins (#21455)
• 6c4af8e Fix function call message change for small number of args (#21432)
• 4b8fdca [mypyc] Add librt.random module (#21433)
• Additional commits viewable in compare view

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