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GeezerVison is showing github.com — Implement PEP 747: TypeForm · Issue #145033 · python/cpython

Implement PEP 747: TypeForm #145033

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Implement PEP 747: TypeForm#145033
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stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directorytopic-typingtype-featureA feature request or enhancementA feature request or enhancement

Description

@JelleZijlstra
JelleZijlstra
opened on Feb 20, 2026
Issue body actions

Feature or enhancement

Proposal:

PEP-747 was just accepted. Let's implement it.

The runtime implementation should be simple and can likely be copied over from typing-extensions. In addition, we'll need docs in typing.rst and an entry in What's New in Python 3.15.

cc @davidfstr

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

No response

Linked PRs

  • gh-145033: Implement PEP 747 #145034
Reacted by Savannah Ostrowski, Terry Jan Reedy and George Ogden

Activity

  1. JelleZijlstra
    added
    type-featureA feature request or enhancementA feature request or enhancement
    topic-typing
    on Feb 20, 2026
  2. StanFromIreland
    added
    stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory
    on Feb 21, 2026

  3. davidfstr commented on Feb 21, 2026

    @davidfstr
    davidfstr
    on Feb 21, 2026
    Contributor
    More actions

    PEP-747 was just accepted. Let's implement it.

    Fantastic! I should have some time within the next week to take this.

    IIRC Jelle already did most of the work by implementing TypeForm inside typing_extensions.

    Heh. Nevermind. I see Jelle beat me to the punch already :)

    Reacted by David Foster and Hugo van Kemenade
  4. JelleZijlstra
    added a commit that references this issue on Mar 1, 2026

    gh-145033: Implement PEP 747 (#145034)

    3484ef6

  5. hugovk commented on Mar 10, 2026

    @hugovk
    hugovk
    on Mar 10, 2026
    Member
    More actions

    #145034 is merged, and python/peps#4860 will mark it as Accepted.

    Anything more to do here, or shall we close the issue?

  6. JelleZijlstra
    closed this as completedon Mar 11, 2026

  7. khalidsaidi commented on Mar 25, 2026

    @khalidsaidi
    khalidsaidi
    on Mar 25, 2026 · Hidden as spam
    show commentMore actions
  8. ljfp
    added a commit that references this issue on Apr 25, 2026

    pythongh-145033: Implement PEP 747 (python#145034)

    508a7d1
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