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

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ambv merged 4 commits intopython:mainfrom
MannXo:gh-140196-doc-ast-3.13
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 intopython:mainfrom
MannXo:gh-140196-doc-ast-3.13

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@MannXo
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@MannXo MannXo commented Oct 17, 2025

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>

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#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
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python-cla-bot Bot commented Oct 17, 2025

All commit authors signed the Contributor License Agreement.

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Comment thread Doc/library/ast.rst Outdated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
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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.
🐍🍒⛏🤖

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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
…thon 3.13 (pythonGH-140243)

(cherry picked from commit fae5761)

Co-authored-by: Parman Mohammadalizadeh <[email protected]>
Co-authored-by: Łukasz Langa <[email protected]>
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bedevere-app Bot commented Mar 24, 2026

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
…ython 3.13 (GH-140243) (GH-146351)

(cherry picked from commit fae5761)

Co-authored-by: Parman Mohammadalizadeh <[email protected]>
Co-authored-by: Łukasz Langa <[email protected]>
ambv added a commit to ambv/cpython that referenced this pull request Mar 24, 2026
… for python 3.13 (pythonGH-140243)

(cherry picked from commit fae5761)

Co-authored-by: Parman Mohammadalizadeh <[email protected]>
Co-authored-by: Łukasz Langa <[email protected]>
@bedevere-app
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bedevere-app Bot commented Mar 24, 2026

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
…hon 3.13 (GH-140243) (GH-146354)

(cherry picked from commit fae5761)

Co-authored-by: Parman Mohammadalizadeh <[email protected]>
CuriousLearner added a commit to CuriousLearner/cpython that referenced this pull request Mar 24, 2026
…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)
clin1234 pushed a commit to clin1234/cpython that referenced this pull request Apr 16, 2026
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