chore(deps): update dependency multidict to v6.7.1

[konflux-internal-p02]

This PR contains the following updates:

Package	Change	Age	Confidence
multidict	==6.1.0 -> ==6.7.1

---

Release Notes

aio-libs/multidict (multidict)

v6.7.1

Compare Source

=====

(2026-01-25)

Bug fixes

• Fixed slow memory leak caused by identity by adding Py_DECREF to identity value before leaving md_pop_one on success
  -- by :user:Vizonex.

  Related issues and pull requests on GitHub:
  :issue:1284.

---

v6.7.0

Compare Source

=====

(2025-10-05)

Contributor-facing changes

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

  Related issues and pull requests on GitHub:
  :issue:1235.

---

v6.6.4

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=====

(2025-08-11)

Bug fixes

• Fixed MutliDict & CIMultiDict memory leak when deleting values or clearing them
  -- by :user:Vizonex

  Related issues and pull requests on GitHub:
  :issue:1233.

Contributor-facing changes

• The type preciseness coverage report generated by MyPy <https://mypy-lang.org>__ is now uploaded to Coveralls <https://coveralls.io/github/aio-libs/multidict>__ and
  will not be included in the Codecov views <https://app.codecov.io/gh/aio-libs/multidict>__ going forward
  -- by :user:webknjaz.

  Related issues and pull requests on GitHub:
  :issue:1122, :issue:1231.

• Added memory leak test for popping or deleting attributes from a multidict to prevent future issues or bogus claims.
  -- by :user:Vizonex

  Related issues and pull requests on GitHub:
  :issue:1233.

---

v6.6.3

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=====

(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

Compare Source

=====

(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

Compare Source

=====

(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

Compare Source

=====

(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

Compare Source

=====

(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

Compare Source

=====

(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

Compare Source

=====

(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

Compare Source

=====

(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

Compare Source

======

(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.

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