python / python/cpython

inspect.getsource returns irrelevant text when used in repl on a class defined in place

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3.13 3.14 topic-repl type-bug
Dominant language
Python
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Description

Bug report

Bug description:

Run interactive cpython 3.13 with following input.

>>> import inspect
>>> class B: pass
...
>>> inspect.getsource(B)
"# Important: don't add things to this module, as they will end up in the REPL's\n"

Instead of class code we get a piece of repl internals.

CPython versions tested on:

3.13

Operating systems tested on:

Windows

Linked PRs
  • gh-126032

Contributor guide

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue in an interactive CPython 3.13 session with inspect.getsource(B) after defining class B in place. Compare the returned text with the class definition; done means the class source is returned instead of unrelated REPL internals.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
cli
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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