build(deps): bump cattrs from 26.1.0 to 26.2.0

[dependabot]

Bumps cattrs from 26.1.0 to 26.2.0.

Release notes

Sourced from cattrs's releases.

v26.2.0

What's Changed

• Fix the msgpack and cbor2 converters unstructuring naive datetimes as local time, which made the serialized value depend on the timezone of the machine doing the unstructuring; naive datetimes are now assumed to be UTC, matching what the structure hooks already read back. (#774 #775)
• Fix override(rename=...) targets containing a quote (or other characters not safe in a bare string literal) crashing code generation with SyntaxError; the rename key is now embedded with repr. (#771)
• Fix Counter keys not being unstructured with the key type's own hook; the single-type-arg branch passed the whole type-args tuple to the key hook lookup instead of the key type. (#768)
• Fix create_default_dis_func (aka create_uniq_field_dis_func) failing to disambiguate valid unions depending on the order of the member classes; unique fields are now resolved iteratively to a fixpoint. (#230 #765)
• Support more recursive types on 3.14+ with specialized factories for annotationlib.ForwardRef. (#740 #741)
• Converter now uses specialized hook factories to generate hooks for tuples, increasing speed. (#737)
• Fix an AttributeError in cattrs internals that could be triggered by using the include_subclasses strategy in a structure_hook_factory (#721, #722)
• Fix TypedDict codegen when keys contain single quotes. (#769)
• Add CattrsError exception type: all exceptions raised by cattrs inherit from this. Literal and date-time validation raise this directly, instead of Exception. (#728)
• Fix the detailed_validation parameter being passed under the wrong name in namedtuple_dict_structure_factory, causing it to be silently ignored. (#723)
• cattrs is now autoformatted using Ruff. (#732)
• Support running the test suite without cbor2 installed. (#748)
• The union passthrough strategy now supports PEP 695 type aliases as union members. (#753)
• BaseConverter.register_structure_hook_factory and BaseConverter.register_unstructure_hook_factory now properly return the factory when used as decorators. (#724)
• The msgspec preconf converter now properly handles recursive classes on Python 3.14+. (#757)

New Contributors

• @​mm-andritz made their first contribution in python-attrs/cattrs#722
• @​bysiber made their first contribution in python-attrs/cattrs#723
• @​yzhkali made their first contribution in python-attrs/cattrs#753
• @​maxtaran2010 made their first contribution in python-attrs/cattrs#766
• @​vineethsaivs made their first contribution in python-attrs/cattrs#765
• @​uttam12331 made their first contribution in python-attrs/cattrs#768
• @​winklemad made their first contribution in python-attrs/cattrs#771
• @​onk3sh made their first contribution in python-attrs/cattrs#775

Full Changelog: python-attrs/cattrs@v26.1.0...v26.2.0

Changelog

Sourced from cattrs's changelog.

26.2.0 (2026-09-08)

• Fix the msgpack and cbor2 converters unstructuring naive datetimes as local time, which made the serialized value depend on the timezone of the machine doing the unstructuring; naive datetimes are now assumed to be UTC, matching what the structure hooks already read back. (#774 #775)
• Fix override(rename=...) targets containing a quote (or other characters not safe in a bare string literal) crashing code generation with SyntaxError; the rename key is now embedded with repr. (#771)
• Fix Counter keys not being unstructured with the key type's own hook; the single-type-arg branch passed the whole type-args tuple to the key hook lookup instead of the key type. (#768)
• Fix create_default_dis_func <cattrs.disambiguators.create_default_dis_func> (aka create_uniq_field_dis_func) failing to disambiguate valid unions depending on the order of the member classes; unique fields are now resolved iteratively to a fixpoint. (#230 #765)
• Support more recursive types on 3.14+ with specialized factories for annotationlib.ForwardRef. (#740 #741)
• Converter <cattrs.Converter> now uses specialized hook factories to generate hooks for tuples, increasing speed. (#737)
• Fix an AttributeError in cattrs internals that could be triggered by using the include_subclasses strategy in a structure_hook_factory (#721, #722)
• Fix TypedDict codegen when keys contain single quotes. (#769)
• Add CattrsError exception type: all exceptions raised by cattrs inherit from this. Literal and date-time validation raise this directly, instead of Exception. (#728)
• Fix the detailed_validation parameter being passed under the wrong name in {func}namedtuple_dict_structure_factory <cattrs.cols.namedtuple_dict_structure_factory>, causing it to be silently ignored. (#723)
• cattrs is now autoformatted using Ruff. (#732)
• Support running the test suite without cbor2 installed. (#748)
• The union passthrough strategy now supports PEP 695 type aliases as union members. (#753)
• {meth}BaseConverter.register_structure_hook_factory and {meth}BaseConverter.register_unstructure_hook_factory now properly return the factory when used as decorators. (#724)
• The {mod}msgspec <cattrs.preconf.msgspec> preconf converter now properly handles recursive classes on Python 3.14+. (#757)

Commits

• df4e4bb v26.2.0
• f7cd6b1 Assume naive datetimes are UTC in the msgpack and cbor2 converters
• d4ff793 Bump pypa/gh-action-pypi-publish to 1.14.2
• 671f203 Bump hynek/baipp
• 893351d Parametrize the special-characters rename test
• 7a37e00 Add HISTORY entry for the rename-key escaping fix
• 3d57d6b Escape override rename keys when generating structure/unstructure code
• f2e42f3 Improve TypedDict key quoting
• 82b02c0 Add HISTORY entry for Counter key unstructure fix (#768)
• 02c3ead Unpack the single type arg for Counter keys when unstructuring
• Additional commits viewable in compare view

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