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Deprecate and remove PyAsyncGen_New(), PyCoro_New(), PyGen_New() and PyGen_NewWithQualName() functions #150671

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Deprecate and remove PyAsyncGen_New(), PyCoro_New(), PyGen_New() and PyGen_NewWithQualName() functions#150671
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sobolevn
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interpreter-core(Objects, Python, Grammar, and Parser dirs)topic-C-APItype-featureA feature request or enhancement

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@sobolevn
sobolevn
opened on May 31, 2026

Feature or enhancement

These functions are not used, they are not tested, they even cannot be called. Because it is impossible to construct the required frame object for them to be called.

They are also not used on PyPI projects.

Refs #99485
Refs python/steering-council#156

Thanks a lot to @vstinner for his work to investigate these functions.

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  1. sobolevn
    self-assigned this
    on May 31, 2026
  2. sobolevn
    added
    type-featureA feature request or enhancement
    topic-C-API
    on May 31, 2026
  3. sobolevn
    added a commit that references this issue on May 31, 2026

    pythongh-150671: Deprecate `PyAsyncGen_New`, `PyCoro_New`, `PyGen_New…

    184ec8a
  4. picnixz
    added
    interpreter-core(Objects, Python, Grammar, and Parser dirs)
    on May 31, 2026
  5. sobolevn
    added a commit that references this issue on Jun 10, 2026

    gh-150671: Deprecate `PyAsyncGen_New`, `PyCoro_New`, `PyGen_New`, `Py…

    44a533f
  6. sobolevn
    closed this as completedon Jun 10, 2026
  7. philthompson10
    added a commit that references this issue on Jun 17, 2026

    pythongh-150671: Deprecate `PyAsyncGen_New`, `PyCoro_New`, `PyGen_New…

    263bc54
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