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Title: gh-145056: Add support for frozendict in dataclass asdict and astuple by eendebakpt · Pull Request #145125 · python/cpython · GitHub

Open Graph Title: gh-145056: Add support for frozendict in dataclass asdict and astuple by eendebakpt · Pull Request #145125 · python/cpython

X Title: gh-145056: Add support for frozendict in dataclass asdict and astuple by eendebakpt · Pull Request #145125 · python/cpython

Description: Adds support for frozendict in dataclassses.astype and dataclasses.asdict. The main effect is that astuple and asdict recurse into a frozendict (just like they recurse into a dict). For example from typing import Any from dataclasses import dataclass, astuple, asdict @dataclass class A: item : Any asub = A(item=10) a = A(item=frozendict({'sub': asub})) print(astuple(a)) Output on main: (frozendict({'sub': A(item=10)}),) Output on PR: (frozendict({'sub': (10,)}),) Notes: Tracking issue for PEP 814 is #141510 For exact dicts there is a fastpath (for performance reasons). In this PR we have not added a fastpath for the frozendict. If this turns out to be a common case, we can add the fastpath later. Issue: gh-145056 📚 Documentation preview 📚: https://cpython-previews--145125.org.readthedocs.build/

Open Graph Description: Adds support for frozendict in dataclassses.astype and dataclasses.asdict. The main effect is that astuple and asdict recurse into a frozendict (just like they recurse into a dict). For example fro...

X Description: Adds support for frozendict in dataclassses.astype and dataclasses.asdict. The main effect is that astuple and asdict recurse into a frozendict (just like they recurse into a dict). For example fro...

Opengraph URL: https://github.com/python/cpython/pull/145125

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d2d5e95 Add support for frozendict in dataclass asdict and astuple eendebakpt Feb 22, 2026 https://github.com/python/cpython/pull/145125/commits/d2d5e95db290ed90aec504479a91cf8d1e8c6207
cc5d549 update documentation eendebakpt Feb 22, 2026 https://github.com/python/cpython/pull/145125/commits/cc5d5492f0da5a8fb5f0d8e6841fb7c3fbb7c720
335cac5 📜🤖 Added by blurb_it. blurb-it[bot] Feb 22, 2026 https://github.com/python/cpython/pull/145125/commits/335cac5a1d64c2c7f441f8ffacd430fcd4f3fac2
f19c46d fix news entry eendebakpt Feb 22, 2026 https://github.com/python/cpython/pull/145125/commits/f19c46da32c227abbe7441501ef13c41e666462e
d61d4f5 Merge branch 'main' into dataclasses_frozendict_tests eendebakpt Feb 22, 2026 https://github.com/python/cpython/pull/145125/commits/d61d4f52caea4535b8c55dbdcf28b1df556292d3
719c0f3 fix whatsnew entry eendebakpt Feb 22, 2026 https://github.com/python/cpython/pull/145125/commits/719c0f3ba655928df37fe19a898a0663dffba3b0
97cec2d review comments eendebakpt Feb 23, 2026 https://github.com/python/cpython/pull/145125/commits/97cec2d5592af1e0eaf8a070bc7749f701533879
bc112a2 Merge branch 'main' into dataclasses_frozendict_tests eendebakpt Feb 23, 2026 https://github.com/python/cpython/pull/145125/commits/bc112a2f8e1d269b995564f6a144a0032c698d56
2fc6f65 Merge branch 'main' into dataclasses_frozendict_tests eendebakpt Apr 18, 2026 https://github.com/python/cpython/pull/145125/commits/2fc6f654e0ce8b37231b8ec8c4d16ebca96d967c
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