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gh-131885: Document that dict.setdefault takes no keyword arguments - #128208

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picnixz merged 4 commits into
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adamtheturtle:patch-2
Mar 30, 2025
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gh-131885: Document that dict.setdefault takes no keyword arguments#128208
picnixz merged 4 commits into
python:mainfrom
adamtheturtle:patch-2

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@adamtheturtle

@adamtheturtleadamtheturtle commented Dec 23, 2024•
edited by picnixz
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Running

{}.setdefault("a", default=1)

gives:

TypeError: dict.setdefault() takes no keyword arguments

📚 Documentation preview 📚: https://cpython-previews--128208.org.readthedocs.build/en/128208/library/stdtypes.html#dict.setdefault

@adamtheturtle
Document that dict.setdefault takes no keyword arguments
9cac0ec
Running
```python
{}.setdefault("a", default=1)
```
gives:
```
TypeError: dict.setdefault() takes no keyword arguments
```
@bedevere-appbedevere-appBot added docs Documentation in the Doc dir skip news awaiting review labels Dec 23, 2024
@adamtheturtle

adamtheturtle commented Dec 24, 2024

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Related: #128207

@ZeroIntensityZeroIntensity added needs backport to 3.12 only security fixes needs backport to 3.13 bugs and security fixes labels Mar 25, 2025
ZeroIntensity
ZeroIntensity reviewed Mar 25, 2025
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Sorry for the delay on the review. Could you document this for get as well?

@adamtheturtle

adamtheturtle commented Mar 25, 2025

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Could you document this for get as well?

@ZeroIntensity I have now done that

ZeroIntensity
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Thanks, LGTM.

@ZeroIntensityZeroIntensity mentioned this pull request Mar 25, 2025
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@picnixzpicnixz changed the title Document that dict.setdefault takes no keyword argumentsgh-131885: Document that dict.setdefault takes no keyword argumentsMar 30, 2025
picnixz
picnixz approved these changes Mar 30, 2025
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We could argue that this would violate the Mapping contract and that we have a "bug". Yes it violates the contract, however, the EB has decided that this should be the guidelines (see also #129669 (comment)), so this specific change should not be blocked.

@picnixzpicnixz mentioned this pull request Mar 30, 2025
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picnixz enabled auto-merge (squash) March 30, 2025 09:18
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picnixz merged commit edfbd8c into python:mainMar 30, 2025
@github-project-automationgithub-project-automationBot moved this from Todo to Done in Docs PRsMar 30, 2025
@miss-islington-app

miss-islington-appBot commented Mar 30, 2025

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Thanks @adamtheturtle for the PR, and @picnixz for merging it 🌮🎉.. I'm working now to backport this PR to: 3.12, 3.13.
🐍🍒⛏🤖

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Mar 30, 2025
@adamtheturtle@miss-islington
pythongh-131885: Document thatdict.setdefaultanddict.gettake …
b5d3303
…no keyword arguments (pythonGH-128208)
(cherry picked from commit edfbd8c)
Co-authored-by: Adam Dangoor <adamdangoor@gmail.com>
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GH-131893 is a backport of this pull request to the 3.13 branch.

@bedevere-appbedevere-appBot removed the needs backport to 3.13 bugs and security fixes label Mar 30, 2025
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Mar 30, 2025
@adamtheturtle@miss-islington
pythongh-131885: Document thatdict.setdefaultanddict.gettake …
000b076
…no keyword arguments (pythonGH-128208)
(cherry picked from commit edfbd8c)
Co-authored-by: Adam Dangoor <adamdangoor@gmail.com>
@bedevere-app

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GH-131894 is a backport of this pull request to the 3.12 branch.

@bedevere-appbedevere-appBot removed the needs backport to 3.12 only security fixes label Mar 30, 2025
@picnixz

picnixz commented Mar 30, 2025

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Thank you for the fix!

picnixz pushed a commit that referenced this pull request Mar 30, 2025
@miss-islington@adamtheturtle
[3.13]gh-131885: Document thatdict.setdefaultanddict.gettake…
2570896
… no keyword arguments (GH-128208) (#131893)
gh-131885: Document that `dict.setdefault` and `dict.get` take no keyword arguments (GH-128208)
(cherry picked from commit edfbd8c)
Co-authored-by: Adam Dangoor <adamdangoor@gmail.com>
picnixz pushed a commit that referenced this pull request Mar 30, 2025
@miss-islington@adamtheturtle
[3.12]gh-131885: Document thatdict.setdefaultanddict.gettake…
525eddf
… no keyword arguments (GH-128208) (#131894)
gh-131885: Document that `dict.setdefault` and `dict.get` take no keyword arguments (GH-128208)
(cherry picked from commit edfbd8c)
Co-authored-by: Adam Dangoor <adamdangoor@gmail.com>
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