Skip to content

Conversation

renovate[bot]
Copy link
Contributor

@renovate renovate bot commented Sep 23, 2025

This PR contains the following updates:

Package Change Age Confidence
multidict ==6.0.4 -> ==6.7.0 age confidence

Release Notes

aio-libs/multidict (multidict)

v6.7.0: 6.7.0

Contributor-facing changes

  • Updated tests and added CI for CPython 3.14 -- by :user:kumaraditya303.

    Related issues and pull requests on GitHub:
    #​1235.


v6.6.4

Compare Source

v6.6.3

=====

(2025-06-30)

Bug fixes

  • Fixed inconsistencies generated by the C implementation of _md_shrink() which might later lead to assertion failures and crash -- by :user:Romain-Geissler-1A.

    Related issues and pull requests on GitHub:
    :issue:1229.


v6.6.2

Compare Source

=====

(2025-06-28)

Bug fixes

  • Fixed a memory corruption issue in the C implementation of _md_shrink() that could lead to segmentation faults and data loss when items were deleted from a :class:~multidict.MultiDict. The issue was an edge case in the pointer arithmetic during the compaction phase -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1221, :issue:1222.

  • Fixed format string compilation errors in debug builds on 32-bit platforms by using portable %zd format specifiers for Py_ssize_t values instead of %ld -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1225, :issue:1226.

Packaging updates and notes for downstreams

  • Re-enabled 32-bit Linux wheel builds that were disabled by default in cibuildwheel 3.0.0 -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1225, :issue:1227.


v6.6.1

=====

(2025-06-28)

Bug fixes

  • If :meth:multidict.MultiDict.extend, :meth:multidict.MultiDict.merge, or :meth:multidict.MultiDict.update raises an exception, now the multidict internal state is correctly restored.
    Patch by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:1215.

Contributor-facing changes

  • Fixed setuptools deprecation warning about the license specification -- by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:1216.

  • Fix compiler warnings and convert them to errors -- by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:1217.


v6.6.0

=====

(2025-06-27)

Features

  • Added :meth:multidict.MultiDict.merge which copies all items from arguments if its key
    not exist in the dictionary -- by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:292.

  • Stopped reallocating memory for the internal htkeys_t structure when inserting new items if the
    multidict has deleted items and it could be collapsed in-place. Removal of
    malloc()/free() improves the performance slightly.

    The change affects C implementation only, pure Python code is not changed.

    Patch by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:1200.

  • C implementation of :class:multidict.MultiDict.getall now is slightly faster if it returns nothing -- by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:1212.

Improved documentation

  • Replaced docstring for :meth:multidict.MultiDict.update to don't use RST/markdown markup.

    Related issues and pull requests on GitHub:
    :issue:1203.

  • Improved documentation for :meth:multidict.MultiDict.extend and :meth:multidict.MultiDict.update -- by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:1205.

Contributor-facing changes

  • When building wheels, the source distribution is now passed directly
    to the cibuildwheel invocation -- by :user:webknjaz.

    Related issues and pull requests on GitHub:
    :issue:1199.

  • Set up PYTHONHASHSEED for benchmarks execution to make measured times stable -- by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:1202.


v6.5.1

=====

(2025-06-24)

Bug fixes

  • Fixed a bug in C implementation when multidict is resized and it has deleted slots.

    The bug was introduced by multidict 6.5.0 release.

    Patch by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:1195.

Contributor-facing changes

  • A pair of code formatters for Python and C have been configured in the pre-commit tool.

    Related issues and pull requests on GitHub:
    :issue:1123.

  • Shorted fixture parametrization ids.

    For example, test_keys_view_xor[case-insensitive-pure-python-module] becomes test_keys_view_xor[ci-py] -- by :user:asvetlov.

    Related issues and pull requests on GitHub:
    :issue:1192.

  • The :file:reusable-cibuildwheel.yml workflow has been refactored to
    be more generic and :file:ci-cd.yml now holds all the configuration
    toggles -- by :user:webknjaz.

    Related issues and pull requests on GitHub:
    :issue:1193.


v6.5.0

=====

(2025-06-17)

.. note::

The release was yanked because of :issue:1195, multidict 6.5.1 should be used
instead.

Features

  • Replace internal implementation from an array of items to hash table.
    algorithmic complexity for lookups is switched from O(N) to O(1).

    The hash table is very similar to :class:dict from CPython but it allows keys duplication.

    The benchmark shows 25-50% boost for single lookups, x2-x3 for bulk updates, and x20 for
    some multidict view operations. The gain is not for free:
    :class:~multidict.MultiDict.add and :class:~multidict.MultiDict.extend are 25-50%
    slower now. We consider it as acceptable because the lookup is much more common
    operation that addition for the library domain.

    Related issues and pull requests on GitHub:
    :issue:1128.

Contributor-facing changes

  • Builds have been added for arm64 Windows
    wheels and the reusable-build-wheel.yml
    template has been modified to allow for
    an os value (windows-11-arm) which
    does not end with the -latest postfix.

    Related issues and pull requests on GitHub:
    :issue:1167.


v6.4.4

=====

(2025-05-19)

Bug fixes

  • Fixed a segmentation fault when calling :py:meth:multidict.MultiDict.setdefault with a single argument -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1160.

  • Fixed a segmentation fault when attempting to directly instantiate view objects
    (multidict._ItemsView, multidict._KeysView, multidict._ValuesView) -- by :user:bdraco.

    View objects now raise a proper :exc:TypeError with the message "cannot create '...' instances directly"
    when direct instantiation is attempted.

    View objects should only be created through the proper methods: :py:meth:multidict.MultiDict.items,
    :py:meth:multidict.MultiDict.keys, and :py:meth:multidict.MultiDict.values.

    Related issues and pull requests on GitHub:
    :issue:1164.

Miscellaneous internal changes

  • :class:multidict.MultiDictProxy was refactored to rely only on
    :class:multidict.MultiDict public interface and don't touch any implementation
    details.

    Related issues and pull requests on GitHub:
    :issue:1150.

  • Multidict views were refactored to rely only on
    :class:multidict.MultiDict API and don't touch any implementation
    details.

    Related issues and pull requests on GitHub:
    :issue:1152.

  • Dropped internal _Impl class from pure Python implementation, both pure Python and C
    Extension follows the same design internally now.

    Related issues and pull requests on GitHub:
    :issue:1153.


v6.4.3

=====

(2025-04-10)

Bug fixes

  • Fixed building the library in debug mode.

    Related issues and pull requests on GitHub:
    :issue:1144.

  • Fixed custom PyType_GetModuleByDef() when non-heap type object was passed.

    Related issues and pull requests on GitHub:
    :issue:1147.

Packaging updates and notes for downstreams

  • Added the ability to build in debug mode by setting :envvar:MULTIDICT_DEBUG_BUILD in the environment -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1145.


v6.4.2

Compare Source

=====

(2025-04-09)

Bug fixes

  • Fixed a segmentation fault when creating subclassed :py:class:~multidict.MultiDict objects on Python < 3.11 -- by :user:bdraco.

    The problem first appeared in 6.4.0

    Related issues and pull requests on GitHub:
    :issue:1141.


v6.4.1

Compare Source

=====

(2025-04-09)

No significant changes.


v6.4.0

Compare Source

=====

(2025-04-09)

Bug fixes

  • Fixed a memory leak creating new :class:~multidict.istr objects -- by :user:bdraco.

    The leak was introduced in 6.3.0

    Related issues and pull requests on GitHub:
    :issue:1133.

  • Fixed reference counting when calling :py:meth:multidict.MultiDict.update -- by :user:bdraco.

    The leak was introduced in 4.4.0

    Related issues and pull requests on GitHub:
    :issue:1135.

Features

  • Switched C Extension to use heap types and the module state.

    Related issues and pull requests on GitHub:
    :issue:1125.

  • Started building armv7l wheels -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1127.


v6.3.2

Compare Source

=====

(2025-04-03)

Bug fixes

  • Resolved a memory leak by ensuring proper reference count decrementation -- by :user:asvetlov and :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1121.


v6.3.1

Compare Source

=====

(2025-04-01)

Bug fixes

  • Fixed keys not becoming case-insensitive when :class:multidict.CIMultiDict is created by passing in a :class:multidict.MultiDict -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1112.

  • Fixed the pure Python version mutating the original :class:multidict.MultiDict when creating a new :class:multidict.CIMultiDict from an existing one when keyword arguments are also passed -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1113.

  • Prevented crashing with a segfault when :func:repr is called for recursive multidicts and their proxies and views.

    Related issues and pull requests on GitHub:
    :issue:1115.


v6.3.0

=====

(2025-03-31)

Bug fixes

  • Set operations for KeysView and ItemsView of case-insensitive multidicts and their proxies are processed in case-insensitive manner.

    Related issues and pull requests on GitHub:
    :issue:965.

  • Rewrote :class:multidict.CIMultiDict and it proxy to always return
    :class:multidict.istr keys. istr is derived from :class:str,
    thus the change is backward compatible.

    The performance boost is about 15% for some operations for C Extension,
    pure Python implementation have got a visible (15% - 230%) speedup as well.

    Related issues and pull requests on GitHub:
    :issue:1097.

  • Fixed a crash when extending a multidict from multidict proxy if C Extensions were used.

    Related issues and pull requests on GitHub:
    :issue:1100.

Features

  • Implemented a custom parser for METH_FASTCALL | METH_KEYWORDS protocol
    -- by :user:asvetlov.

    The patch re-enables fast call protocol in the :py:mod:multidict C Extension.

    Speedup is about 25%-30% for the library benchmarks for Python 3.12+.

    Related issues and pull requests on GitHub:
    :issue:1070.

  • The C-extension no longer pre-allocates a Python exception object in
    lookup-related methods of :py:class:~multidict.MultiDict when the
    passed-in key is not found but default value is provided.

    Namely, this affects :py:meth:MultiDict.getone() <multidict.MultiDict.getone>, :py:meth:MultiDict.getall() <multidict.MultiDict.getall>, :py:meth:MultiDict.get() <multidict.MultiDict.get>, :py:meth:MultiDict.pop() <multidict.MultiDict.pop>, :py:meth:MultiDict.popone() <multidict.MultiDict.popone>, and :py:meth:MultiDict.popall() <multidict.MultiDict.popall>.

    Additionally, the :py:class:~multidict.MultiDict comparison with
    regular :py:class:dict\ ionaries is now about 60% faster
    on Python 3.13+ in the fallback-to-default case.

    Related issues and pull requests on GitHub:
    :issue:1078.

  • Implemented __repr__() for C Extension classes in C.

    The speedup is about 2.5 times.

    Related issues and pull requests on GitHub:
    :issue:1081.

  • Made C version of :class:multidict.istr pickleable.

    Related issues and pull requests on GitHub:
    :issue:1098.

  • Optimized multidict creation and extending / updating if C Extensions are used.

    The speedup is between 25% and 70% depending on the usage scenario.

    Related issues and pull requests on GitHub:
    :issue:1101.

  • :meth:multidict.MultiDict.popitem is changed to remove
    the latest entry instead of the first.

    It gives O(1) amortized complexity.

    The standard :meth:dict.popitem removes the last entry also.

    Related issues and pull requests on GitHub:
    :issue:1105.

Contributor-facing changes

  • Started running benchmarks for the pure Python implementation in addition to the C implementation -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1092.

  • The the project-wide Codecov_ metric is no longer reported
    via GitHub Checks API. The combined value is not very useful
    because one of the sources (MyPy) cannot reach 100% with the
    current state of the ecosystem. We may want to reconsider in
    the future. Instead, we now have two separate
    “runtime coverage” metrics for library code and tests.
    They are to be kept at 100% at all times.
    And the “type coverage” metric will remain advisory, at a
    lower threshold.

    The default patch metric check is renamed to “runtime”
    to better reflect its semantics. This one will also require
    100% coverage.
    Another “typing” patch coverage metric is now reported
    alongside it. It's considered advisory, just like its
    project counterpart.

    When looking at Codecov_, one will likely want to look at
    MyPy and pytest flags separately. It is usually best to
    avoid looking at the PR pages that sometimes display
    combined coverage incorrectly.

    The change additionally disables the deprecated GitHub
    Annotations integration in Codecov_.

    Finally, the badge coloring range now starts at 100%.

    .. image:: https://codecov.io/gh/aio-libs/multidict/branch/master/graph/badge.svg?flag=pytest
    :target: https://codecov.io/gh/aio-libs/multidict?flags[]=pytest
    :alt: Coverage metrics

    -- by :user:webknjaz

    Related issues and pull requests on GitHub:
    :issue:1093.

Miscellaneous internal changes

  • Synchronized :file:pythoncapi_compat.h with the latest available version.

    Related issues and pull requests on GitHub:
    :issue:1063.

  • Moved registering ABCs for C Extension classes from C to Python.

    Related issues and pull requests on GitHub:
    :issue:1083.

  • Refactored the internal pair_list implementation.

    Related issues and pull requests on GitHub:
    :issue:1084.

  • Implemented views comparison and disjoints in C instead of Python helpers.

    The performance boost is about 40%.

    Related issues and pull requests on GitHub:
    :issue:1096.


v6.2.0

======

(2025-03-17)

Bug fixes

  • Fixed in checks throwing an exception instead of returning :data:False when testing non-strings.

    Related issues and pull requests on GitHub:
    :issue:1045.

  • Fixed a leak when the last accessed module in PyInit__multidict() init is not released.

    Related issues and pull requests on GitHub:
    :issue:1061.

Features

  • Implemented support for the free-threaded build of CPython 3.13 -- by :user:lysnikolaou.

    Related issues and pull requests on GitHub:
    :issue:1015.

Packaging updates and notes for downstreams

  • Started publishing wheels made for the free-threaded build of CPython 3.13 -- by :user:lysnikolaou.

    Related issues and pull requests on GitHub:
    :issue:1015.

Miscellaneous internal changes

  • Used stricter typing across the code base, resulting in improved typing accuracy across multidict classes.
    Funded by an NLnet grant.

    Related issues and pull requests on GitHub:
    :issue:1046.


v6.1.0

Compare Source

==================

Bug fixes

  • Covered the unreachable code path in
    multidict._multidict_base._abc_itemsview_register()
    with typing -- by :user:skinnyBat.

    Related issues and pull requests on GitHub:
    :issue:928.

Features

  • Added support for Python 3.13 -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:1002.

Removals and backward incompatible breaking changes

  • Removed Python 3.7 support -- by :user:bdraco.

    Related issues and pull requests on GitHub:
    :issue:997.

Contributor-facing changes

  • Added tests to have full code coverage of the
    multidict._multidict_base._viewbaseset_richcmp() function
    -- by :user:skinnyBat.

    Related issues and pull requests on GitHub:
    :issue:928.

  • The deprecated <https://hynek.me/til/set-output-deprecation-github-actions/>_
    ::set-output workflow command has been replaced
    by the $GITHUB_OUTPUT environment variable
    in the GitHub Actions CI/CD workflow definition.

    Related issues and pull requests on GitHub:
    :issue:940.

  • codecov-action <https://github.com/codecov/codecov-action>_
    has been temporarily downgraded to v3
    in the GitHub Actions CI/CD workflow definitions
    in order to fix uploading coverage to Codecov_.
    See this issue <https://github.com/codecov/codecov-action/issues/1252>_
    for more details.

    .. _Codecov: https://codecov.io/gh/aio-libs/multidict?flags[]=pytest

    Related issues and pull requests on GitHub:
    :issue:941.

  • In the GitHub Actions CI/CD workflow definition,
    the Get pip cache dir step has been fixed for
    Windows runners by adding shell: bash.
    See actions/runner#2224 <https://github.com/actions/runner/issues/2224>_
    for more details.

    Related issues and pull requests on GitHub:
    :issue:942.

  • Interpolation of the pip cache keys has been
    fixed by adding missing $ syntax
    in the GitHub Actions CI/CD workflow definition.

    Related issues and pull requests on GitHub:
    :issue:943.


v6.0.5

Compare Source

==================

Bug fixes

  • Upgraded the C-API macros that have been deprecated in Python 3.9
    and later removed in 3.13 -- by :user:iemelyanov.

    Related issues and pull requests on GitHub:
    :issue:862, :issue:864, :issue:868, :issue:898.

  • Reverted to using the public argument parsing API
    :c:func:PyArg_ParseTupleAndKeywords under Python 3.12
    -- by :user:charles-dyfis-net and :user:webknjaz.

    The effect is that this change prevents build failures with
    clang 16.9.6 and gcc-14 reported in :issue:926. It also
    fixes a segmentation fault crash caused by passing keyword
    arguments to :py:meth:MultiDict.getall() <multidict.MultiDict.getall> discovered by :user:jonaslb
    and :user:hroncok while examining the problem.

    Related issues and pull requests on GitHub:
    :issue:862, :issue:909, :issue:926, :issue:929.

  • Fixed a SystemError: null argument to internal routine error on
    a MultiDict.items().isdisjoint() call when using C Extensions.

    Related issues and pull requests on GitHub:
    :issue:927.

Improved documentation

  • On the Contributing docs <https://github.com/aio-libs/multidict/blob/master/CHANGES/README.rst>_ page,
    a link to the Towncrier philosophy has been fixed.

    Related issues and pull requests on GitHub:
    :issue:911.

Packaging updates and notes for downstreams

  • Stopped marking all files as installable package data
    -- by :user:webknjaz.

    This change helps setuptools understand that C-headers are
    not to be installed under :file:lib/python3.{x}/site-packages/.

    Related commits on GitHub:
    :commit:31e1170.

  • Started publishing pure-python wheels to be installed
    as a fallback -- by :user:webknjaz.

    Related commits on GitHub:
    :commit:7ba0e72.

  • Switched from setuptools' legacy backend (setuptools.build_meta:__legacy__)
    to the modern one (setuptools.build_meta) by actually specifying the
    the [build-system] build-backend option in :file:pyproject.toml
    -- by :user:Jackenmen.

    Related issues and pull requests on GitHub:
    :issue:802.

  • Declared Python 3.12 supported officially in the
    distribution package metadata -- by :user:hugovk.

    Related issues and pull requests on GitHub:
    :issue:877.

Contributor-facing changes

  • The test framework has been refactored. In the previous state, the circular
    imports reported in :issue:837 caused the C-extension tests to be skipped.

    Now, there is a set of the pytest fixtures that is set up in a parametrized
    manner allowing to have a consistent way of accessing mirrored multidict
    implementations across all the tests.

    This change also implemented a pair of CLI flags (--c-extensions /
    --no-c-extensions) that allow to explicitly request deselecting the tests
    running against the C-extension.

    -- by :user:webknjaz.

    Related issues and pull requests on GitHub:
    :issue:98, :issue:837, :issue:915.

  • Updated the test pins lockfile used in the
    cibuildwheel test stage -- by :user:hoodmane.

    Related issues and pull requests on GitHub:
    :issue:827.

  • Added an explicit void for arguments in C-function signatures
    which addresses the following compiler warning:

    .. code-block:: console

    warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]

    -- by :user:hoodmane

    Related issues and pull requests on GitHub:
    :issue:828.

  • An experimental Python 3.13 job now runs in the CI
    -- :user:webknjaz.

    Related issues and pull requests on GitHub:
    :issue:920.

  • Added test coverage for the :ref:and <python:and>, :ref:or <python:or>, :py:obj:sub <python:object.__sub__>, and
    :py:obj:xor <python:object.__xor__> operators in the
    :file:multidict/_multidict_base.py module. It also covers
    :py:data:NotImplemented and
    ":py:class:~typing.Iterable-but-not-:py:class:~typing.Set"
    cases there.

    -- by :user:a5r0n

    Related issues and pull requests on GitHub:
    :issue:936.

  • The version of pytest is now capped below 8, when running MyPy
    against Python 3.7. This pytest release dropped support for
    said runtime.

    Related issues and pull requests on GitHub:
    :issue:937.



Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot force-pushed the renovate/multidict-6.x branch from 1ef0029 to 5240947 Compare October 6, 2025 16:49
@renovate renovate bot changed the title Update dependency multidict to v6.6.4 Update dependency multidict to v6.7.0 Oct 6, 2025
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

0 participants