deps(dev): bump the dev-dependencies group across 1 directory with 5 updates

[dependabot]

Updates the requirements on pytest, pytest-asyncio, pytest-mock, ruff and mypy to permit the latest version.
Updates pytest to 9.1.1

Release notes

Sourced from pytest's releases.

9.1.1

pytest 9.1.1 (2026-06-19)

Bug fixes

• #14220: Fixed a logic bug in pytest.RaisesGroup which would might cause it to display incorrect "It matches FooError() which was paired with BarError" messages.
• #14591: Fixed a regression in pytest 9.1.0 which caused overriding a parametrized fixture with an indirect @​pytest.mark.parametrize to fail with "duplicate parametrization of '<fixture name>'".
• #14606: Fixed list-item typing errors from mypy in @pytest.mark.parametrize <pytest.mark.parametrize ref> argvalues parameter.
• #14608: Fixed a regression in pytest 9.1.0 where conftest.py files located in <invocation dir>/test* were no longer loaded as initial conftests when invoked without arguments. This could cause certain hooks (like pytest_addoption) in these files to not fire.

Commits

• cf470ec Prepare release version 9.1.1
• e0c8ce6 Merge pull request #14625 from pytest-dev/patchback/backports/9.1.x/a07c31a97...
• 1b82d16 Merge pull request #14624 from pytest-dev/patchback/backports/9.1.x/b375b79ec...
• 501c4bc Merge pull request #14596 from bluetech/doc-classmethod
• b61f588 Merge pull request #14622 from chrisburr/fix-14608-initial-conftest-test-subdir
• 9a567e0 [automated] Update plugin list (#14617) (#14618)
• ef8b299 Merge pull request #14620 from pytest-dev/patchback/backports/9.1.x/680f9f3ed...
• 66abd07 Merge pull request #14220 from bysiber/fix-stale-iexp-raisesgroup
• 79fbf93 Merge pull request #14612 from pytest-dev/patchback/backports/9.1.x/974ed48b6...
• 0d312eb Merge pull request #14611 from bluetech/parametrize-argvalues-typing
• Additional commits viewable in compare view

Updates pytest-asyncio to 1.4.0

Release notes

Sourced from pytest-asyncio's releases.

pytest-asyncio v1.4.0

1.4.0 - 2026-05-26

Deprecated

• Overriding the event_loop_policy fixture is deprecated. Use the pytest_asyncio_loop_factories hook instead. (#1419)

Added

• Added the pytest_asyncio_loop_factories hook to parametrize asyncio tests with custom event loop factories.

  The hook returns a mapping of factory names to loop factories, and pytest.mark.asyncio(loop_factories=[...]) selects a subset of configured factories per test. When a single factory is configured, test names are unchanged.

  Synchronous @pytest_asyncio.fixture functions now see the correct event loop when custom loop factories are configured, even when test code disrupts the current event loop (e.g., via asyncio.run() or asyncio.set_event_loop(None)). (#1164)

Changed

• Improved the readability of the warning message that is displayed when asyncio_default_fixture_loop_scope is unset (#1298)
• Only import asyncio.AbstractEventLoopPolicy for type checking to avoid raising a DeprecationWarning. (#1394)
• Updated minimum supported pytest version to v8.4.0. (#1397)

Fixed

• Fixed a ResourceWarning: unclosed event loop warning that could occur when a synchronous test called asyncio.run() or otherwise unset the current event loop after pytest-asyncio had run an async test or fixture. (#724)

Notes for Downstream Packagers

• Added dependency on sphinx-tabs >= 3.5 to organize documentation examples into tabs. (#1395)

Commits

• 6e14cd2 chore: Prepare release of v1.4.0.
• 4b900fb Build(deps): Bump codecov/codecov-action from 6.0.0 to 6.0.1
• ab9f632 Build(deps): Bump zipp from 3.23.1 to 4.1.0
• a56fc77 Build(deps): Bump hypothesis from 6.152.6 to 6.152.8
• e8bae9b Build(deps): Bump requests from 2.34.0 to 2.34.2
• fc43340 Build(deps): Bump idna from 3.14 to 3.15
• 762eaf5 Build(deps): Bump jaraco-functools from 4.4.0 to 4.5.0
• b62e222 Build(deps): Bump click from 8.3.3 to 8.4.0
• 9190447 Build(deps): Bump pydantic from 2.13.3 to 2.13.4
• 82a393c ci: Remove unnecessary debug output.
• Additional commits viewable in compare view

Updates pytest-mock to 3.15.1

Release notes

Sourced from pytest-mock's releases.

v3.15.1

2025-09-16

• #529: Fixed itertools._tee object has no attribute error -- now duplicate_iterators=True must be passed to mocker.spy to duplicate iterators.

Changelog

Sourced from pytest-mock's changelog.

3.15.1

2025-09-16

• [#529](https://github.com/pytest-dev/pytest-mock/issues/529) <https://github.com/pytest-dev/pytest-mock/issues/529>_: Fixed itertools._tee object has no attribute error -- now duplicate_iterators=True must be passed to mocker.spy to duplicate iterators.

3.15.0

2025-09-04

• Python 3.8 (EOL) is no longer supported.
• [#524](https://github.com/pytest-dev/pytest-mock/issues/524) <https://github.com/pytest-dev/pytest-mock/pull/524>_: Added spy_return_iter to mocker.spy, which contains a duplicate of the return value of the spied method if it is an Iterator.

3.14.1 (2025-05-26)

• [#503](https://github.com/pytest-dev/pytest-mock/issues/503) <https://github.com/pytest-dev/pytest-mock/pull/503>_: Python 3.14 is now officially supported.

3.14.0 (2024-03-21)

• [#415](https://github.com/pytest-dev/pytest-mock/issues/415) <https://github.com/pytest-dev/pytest-mock/pull/415>_: MockType and AsyncMockType can be imported from pytest_mock for type annotation purposes.

• [#420](https://github.com/pytest-dev/pytest-mock/issues/420) <https://github.com/pytest-dev/pytest-mock/issues/420>_: Fixed a regression which would cause mocker.patch.object to not being properly cleared between tests.

3.13.0 (2024-03-21)

• [#417](https://github.com/pytest-dev/pytest-mock/issues/417) <https://github.com/pytest-dev/pytest-mock/pull/417>_: spy now has spy_return_list, which is a list containing all the values returned by the spied function.
• pytest-mock now requires pytest>=6.2.5.
• [#410](https://github.com/pytest-dev/pytest-mock/issues/410) <https://github.com/pytest-dev/pytest-mock/pull/410>: pytest-mock's setup.py file is removed. If you relied on this file, e.g. to install pytest using setup.py install, please see Why you shouldn't invoke setup.py directly <https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html#summary> for alternatives.

3.12.0 (2023-10-19)

• Added support for Python 3.12.
• Dropped support for EOL Python 3.7.
• mocker.resetall() now also resets mocks created by mocker.create_autospec ([#390](https://github.com/pytest-dev/pytest-mock/issues/390)_).

.. _#390: pytest-dev/pytest-mock#390

3.11.1 (2023-06-15)

(This release source code is identical to 3.11.0 except a small internal fix to deployment/CI)

... (truncated)

Commits

• e1b5c62 Release 3.15.1
• 184eb19 Set spy_return_iter only when explicitly requested (#537)
• 4fa0088 [pre-commit.ci] pre-commit autoupdate (#536)
• f5aff33 Fix test failure with pytest 8+ and verbose mode (#535)
• adc4187 Bump actions/setup-python from 5 to 6 in the github-actions group (#533)
• 95ad570 [pre-commit.ci] pre-commit autoupdate (#532)
• e696bf0 Fix standalone mock support (#531)
• 5b29b03 Fix gen-release-notes script
• 7d22ef4 Merge pull request #528 from pytest-dev/release-3.15.0
• 90b29f8 Update CHANGELOG for 3.15.0
• Additional commits viewable in compare view

Updates ruff to 0.16.4

Release notes

Sourced from ruff's releases.

0.16.4

Release Notes

Released on 2026-08-20.

Preview features

• [flake8-use-pathlib] Add autofix for PTH116 (#26460)
• [refurb] Restrict delete-full-slice to lists (FURB131) (#27711)
• [refurb] Skip FURB101 and FURB103 when the open argument is a file descriptor (#27643)

Bug fixes

• Fix InvalidInstruction on Windows CPUs that do not support POPCNT (#27803)
• [pyflakes] Emit semantic syntax errors in string type definitions as F722 (#27835)
• [pylint] Allow os._exit imports in import-private-name (PLC2701) (#27738)

Rule changes

• [syntax-errors] Align mixed t-string/bytes error message with CPython 3.14 (#27766)
• [ruff] Add ctypes.LittleEndianStructure and related types to existing exception (RUF012) (#27753)
• [syntax-errors] Detect duplicate keyword arguments (#17804)
• [syntax-errors] Detect parameters declared nonlocal (#27628)

Server

• Offer display-only fixes and mark safe fixes preferred (#27807)
• Support pull diagnostics for notebook cells (#27779)

Documentation

• Add default indicator to rules table (#27724)
• Fix broken link to Python docs (#27757)

Other changes

• Fix s390x stacker assembly in release builds (#27776)
• Guarantee minimum stack size when parsing a module, standalone expression, and suites (#25464)
• Reduce configuration deserialization code size (#27924)
• Check packed AST index bounds (#27849)

Contributors

• @​AbhinavMir
• @​eduardorittner
• @​royb3
• @​MichaReiser
• @​carljm
• @​rosstitmarsh
• @​ntBre

... (truncated)

Changelog

Sourced from ruff's changelog.

0.16.4

Released on 2026-08-20.

Preview features

• [flake8-use-pathlib] Add autofix for PTH116 (#26460)
• [refurb] Restrict delete-full-slice to lists (FURB131) (#27711)
• [refurb] Skip FURB101 and FURB103 when the open argument is a file descriptor (#27643)

Bug fixes

• Fix InvalidInstruction on Windows CPUs that do not support POPCNT (#27803)
• [pyflakes] Emit semantic syntax errors in string type definitions as F722 (#27835)
• [pylint] Allow os._exit imports in import-private-name (PLC2701) (#27738)

Rule changes

• [syntax-errors] Align mixed t-string/bytes error message with CPython 3.14 (#27766)
• [ruff] Add ctypes.LittleEndianStructure and related types to existing exception (RUF012) (#27753)
• [syntax-errors] Detect duplicate keyword arguments (#17804)
• [syntax-errors] Detect parameters declared nonlocal (#27628)

Server

• Offer display-only fixes and mark safe fixes preferred (#27807)
• Support pull diagnostics for notebook cells (#27779)

Documentation

• Add default indicator to rules table (#27724)
• Fix broken link to Python docs (#27757)

Other changes

• Fix s390x stacker assembly in release builds (#27776)
• Guarantee minimum stack size when parsing a module, standalone expression, and suites (#25464)
• Reduce configuration deserialization code size (#27924)
• Check packed AST index bounds (#27849)

Contributors

• @​AbhinavMir
• @​eduardorittner
• @​royb3
• @​MichaReiser
• @​carljm
• @​rosstitmarsh
• @​ntBre
• @​zaniebot

... (truncated)

Commits

• 11c76bf Bump 0.16.4 (#27937)
• d53c8c5 Isolate playground builds from deployment credentials (#27839)
• cab001e Disable uv preview for releases and pre-commit hooks (#27939)
• f8d575f [ty] Clarify writing guidance for human readers (#27912)
• ca45fae Set --preview and --default-index for the uv-lock hook (#27935)
• 4827bf7 Export UV_DEFAULT_INDEX in release.sh (#27934)
• d1087a4 [ty] Handle assignment expressions in string annotations (#27921)
• 680cce4 [ty] Optimize inherited recursive protocol comparisons (#27922)
• 974d3cb Upgrade ecosystem-analyzer and mypy_primer to the latest upstream pins (#27932)
• b169b40 Install cargo tools locked (#27929)
• Additional commits viewable in compare view

Updates mypy to 2.3.1

Changelog

Sourced from mypy's changelog.

Mypy 2.3.1

• Fix mypyc crash on double yielding Iterators (Daniël van Noord, PR 21826)
• Fix mypyc default_factory for inherited dataclass (Daniël van Noord, PR 21785)
• Clear mypyc coroutine env on coroutine completion (Piotr Sawicki, PR 21734)
• Fix crash when unpacking return value from overload (Shantanu, PR 21830)

Acknowledgements

Thanks to all mypy contributors who contributed to this release:

• Agriya Khetarpal
• Ethan Sarp
• Ivan Levkivskyi
• Jingchen Ye
• Jukka Lehtosalo
• Piotr Sawicki
• Shantanu
• Tom Bannink
• Viktor Szépe
• ygale

I'd also like to thank my employer, Dropbox, for supporting mypy development.

Mypy 2.2

We've just uploaded mypy 2.2.0 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.

Support for Closed TypedDicts (PEP 728)

Mypy now supports closed TypedDicts as specified in PEP 728. A closed TypedDict cannot have extra keys beyond those explicitly defined. This allows the type checker to determine that certain operations are safe when they otherwise wouldn't be due to the potential presence of unknown keys.

You can use the closed keyword argument with TypedDict:

HasName = TypedDict("HasName", {"name": str})
HasOnlyName = TypedDict("HasOnlyName", {"name": str}, closed=True)
Movie = TypedDict("Movie", {"name": str, "year": int})
movie: Movie = {"name": "Nimona", "year": 2023}
has_name: HasName = movie  # OK: HasName is open (default)
has_only_name: HasOnlyName = movie  # Error: HasOnlyName is closed and Movie has extra "year" key
</tr></table>

... (truncated)

Commits

• d642c44 Bump version to 2.3.1
• a392429 [mypyc] Fix crash on double yielding Iterators (#21826)
• 4843e77 [mypyc] Fix default_factory for inherited dataclass (#21785)
• 14f5df9 [mypyc] Clear coroutine env on coroutine completion (#21734)
• 6dfa06d Fix crash when unpacking return value from overload (#21830)
• a385746 Bump version to 2.3.1+dev
• 8aabf84 Drop +dev from version
• 4d8ad2a Update changelog for 2.3 release (#21728)
• 2c21546 [mypyc] Update documentation of race conditions under free threading (#21726)
• a9f62a3 [mypyc] Make attribute access memory safe on free-threaded builds (#21705)
• Additional commits viewable in compare view

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