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gh-140196: Added constructor behavior changes in ast.rst for python 3.13#140243

Merged
ambv merged 4 commits into
python:mainpython/cpython:mainfrom
MannXo:gh-140196-doc-ast-3.13MannXo/cpython:gh-140196-doc-ast-3.13Copy head branch name to clipboard
Mar 24, 2026
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gh-140196: Added constructor behavior changes in ast.rst for python 3.13#140243
ambv merged 4 commits into
python:mainpython/cpython:mainfrom
MannXo:gh-140196-doc-ast-3.13MannXo/cpython:gh-140196-doc-ast-3.13Copy head branch name to clipboard

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@MannXo

@MannXo MannXo commented Oct 17, 2025 •
edited by github-actions Bot
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Summary

This adds a .. versionchanged:: 3.13 note to ast.rst documenting that AST node constructors now provide sensible defaults for omitted fields in Python 3.13: optional fields default to None, list fields default to an empty list, and fields of type :class:ast.expr_context default to :class:Load() <ast.Load>

Issue

#140196

📚 Documentation preview 📚: https://cpython-previews--140243.org.readthedocs.build/

@bedevere-app bedevere-app Bot added docs Documentation in the Doc dir skip news labels Oct 17, 2025
@python-cla-bot

python-cla-bot Bot commented Oct 17, 2025 •
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All commit authors signed the Contributor License Agreement.

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@github-project-automation github-project-automation Bot moved this to Todo in Docs PRs Oct 17, 2025
@bedevere-app bedevere-app Bot mentioned this pull request Oct 17, 2025
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@ambv ambv added needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes labels Mar 23, 2026
ambv
ambv reviewed Mar 23, 2026
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Comment thread Doc/library/ast.rst Outdated
@ambv ambv merged commit fae5761 into python:main Mar 24, 2026
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@github-project-automation github-project-automation Bot moved this from Todo to Done in Docs PRs Mar 24, 2026
@miss-islington-app

miss-islington-app Bot commented Mar 24, 2026

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Thanks @MannXo for the PR, and @ambv for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14.
🐍🍒⛏🤖

@miss-islington-app

miss-islington-app Bot commented Mar 24, 2026

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Sorry, @MannXo and @ambv, I could not cleanly backport this to 3.13 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker fae5761a762a587b48430cbcd6e1886034ae8130 3.13

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Mar 24, 2026
@MannXo @ambv @miss-islington
pythongh-140196: Added constructor behavior changes in ast.rst for py…
325a30a 
…thon 3.13 (pythonGH-140243)

(cherry picked from commit fae5761)

Co-authored-by: Parman Mohammadalizadeh <prmma23@gmail.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
@bedevere-app

bedevere-app Bot commented Mar 24, 2026

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GH-146351 is a backport of this pull request to the 3.14 branch.

@bedevere-app bedevere-app Bot removed the needs backport to 3.14 bugs and security fixes label Mar 24, 2026
ambv added a commit that referenced this pull request Mar 24, 2026
@miss-islington @MannXo @ambv
[3.14] gh-140196: Added constructor behavior changes in ast.rst for p…
ac2fff4 
…ython 3.13 (GH-140243) (GH-146351)

(cherry picked from commit fae5761)

Co-authored-by: Parman Mohammadalizadeh <prmma23@gmail.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
ambv added a commit to ambv/cpython that referenced this pull request Mar 24, 2026
@MannXo @ambv
[3.13] pythongh-140196: Added constructor behavior changes in ast.rst…
fa4096b 
… for python 3.13 (pythonGH-140243)

(cherry picked from commit fae5761)

Co-authored-by: Parman Mohammadalizadeh <prmma23@gmail.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
@bedevere-app

bedevere-app Bot commented Mar 24, 2026

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GH-146354 is a backport of this pull request to the 3.13 branch.

@bedevere-app bedevere-app Bot removed the needs backport to 3.13 bugs and security fixes label Mar 24, 2026
ambv added a commit that referenced this pull request Mar 24, 2026
@ambv @MannXo
[3.13] gh-140196: Add constructor behavior changes in ast.rst for pyt…
14b8655 
…hon 3.13 (GH-140243) (GH-146354)

(cherry picked from commit fae5761)

Co-authored-by: Parman Mohammadalizadeh <prmma23@gmail.com>
CuriousLearner added a commit to CuriousLearner/cpython that referenced this pull request Mar 24, 2026
@CuriousLearner
Merge branch 'main' of github.com:python/cpython into fix-pythongh-13…
e1461a7 
…8577

* 'main' of github.com:python/cpython:
  Remove inactive CODEOWNERS (python#145930)
  pythongh-140196: Added constructor behavior changes in ast.rst for python 3.13 (pythonGH-140243)
@pablogsal pablogsal mentioned this pull request Apr 4, 2026
Merged
clin1234 pushed a commit to clin1234/cpython that referenced this pull request Apr 16, 2026
@MannXo @ambv @clin1234
pythongh-140196: Added constructor behavior changes in ast.rst for py…
279b501 
…thon 3.13 (pythonGH-140243)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
ljfp pushed a commit to ljfp/cpython that referenced this pull request Apr 25, 2026
@MannXo @ambv @ljfp
pythongh-140196: Added constructor behavior changes in ast.rst for py…
d6354f7 
…thon 3.13 (pythonGH-140243)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
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