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Implement PEP 810 – Explicit lazy imports #142349

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8 of 8 issues completed
Open
Implement PEP 810 – Explicit lazy imports#142349
8 of 8 issues completed
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DinoVYhg1spablogsal
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interpreter-core(Objects, Python, Grammar, and Parser dirs)topic-lazy-importstype-featureA feature request or enhancement

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@pablogsal
pablogsal
opened on Dec 6, 2025

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  1. pablogsal
    assigned
    pablogsal
    ,
    DinoV
    and
    Yhg1s
    on Dec 6, 2025
  2. StanFromIreland
    added
    type-featureA feature request or enhancement
    interpreter-core(Objects, Python, Grammar, and Parser dirs)
    on Dec 6, 2025

  3. pablogsal commented on Dec 6, 2025

    @pablogsal
    pablogsal
    on Dec 6, 2025
    MemberAuthor

    The __future__ is now :)

  4. johnslavik commented on Dec 6, 2025

    @johnslavik
    johnslavik
    on Dec 6, 2025 · Hidden as resolved

  5. ZeroIntensity commented on Dec 6, 2025

    @ZeroIntensity
    ZeroIntensity
    on Dec 6, 2025 · Hidden as resolved

  6. FFY00 commented on Dec 10, 2025

    @FFY00
    FFY00
    on Dec 10, 2025
    Member

    modulefinder will probably need some updating too, or at least documenting it doesn't support PEP 810.

  7. DinoV commented on Dec 10, 2025

    @DinoV
    DinoV
    on Dec 10, 2025
    Contributor

    modulefinder will probably need some updating too, or at least documenting it doesn't support PEP 810.

    I suspect there was a test that already made sure this is working. It looks like this relies upon scanning the byte code, and uses dis._find_imports to do so, and that got fixed here: 0b36549

  8. FFY00 commented on Dec 10, 2025

    @FFY00
    FFY00
    on Dec 10, 2025
    Member

    Ah, great!

  9. pablogsal
    added 4 commits that reference this issue on Feb 12, 2026

    gh-142349: Implement PEP 810 - Explicit lazy imports (#142351)

    46d5106

    pythongh-142349: Fix build errors from PEP 810

    60dafbb

    gh-142349: Fix build errors from PEP 810 (#144726)

    7854597

    pythongh-142349: Fix refcount corruption in lazy import specialization

    239c717

  10. 52 remaining items

  11. hugovk
    added a commit that references this issue on Sep 4, 2026

    [3.15] gh-142349: Clarify that sys.lazy_modules may contain extra ite…

    0ca288a
  12. johnslavik
    added a sub-issue on Sep 7, 2026
  13. encukou
    added a commit that references this issue on Sep 10, 2026

    gh-142349: Document `LazyImportType.resolve()` method (GH-156936)

    4616116
  14. hugovk
    added a commit that references this issue on Sep 11, 2026

    [3.15] gh-142349: Document `LazyImportType.resolve()` method (GH-156936…

    8bcee87
  15. clin1234
    added 2 commits that reference this issue on Sep 12, 2026

    pythongh-142349: Clarify that sys.lazy_modules may contain extra items (

    74052d4

    pythongh-142349: Document `LazyImportType.resolve()` method (pythonGH…

    a8b6d91
  16. johnslavik
    added a commit that references this issue on Sep 14, 2026

    pythongh-142349: Document `LazyImportType.resolve()` method (pythonGH…

    d56c822
  17. hugovk
    added a commit that references this issue on Oct 1, 2026

    gh-142349: Simplify lazy import resolution (#158282)

    a6a63b6
  18. pablogsal
    added a commit that references this issue on Oct 1, 2026

    [3.15] gh-142349: Simplify lazy import resolution (GH-158282) (#158569)

    021f634
  19. StanFromIreland
    marked Segmentation fault in __lazy_import__ with non-string fromlist item #158637 as a duplicate of this issue on Oct 3, 2026
  20. nedbat
    added a commit that references this issue on Oct 3, 2026

    gh-142349: Update lazy import comments in whatsnew (#158651)

    9a15440
  21. hugovk
    added a commit that references this issue on Oct 3, 2026

    [3.15] gh-142349: Update lazy import comments in whatsnew (GH-158651) (…

    6d9b6f9
  22. Kronuz
    added 3 commits that reference this issue on Oct 5, 2026

    [3.15] pythongh-142349: Simplify lazy import resolution (pythonGH-158282

    cc8f28a

    [3.15] pythongh-142349: Clarify that sys.lazy_modules may contain ext…

    b85ac6c

    [3.15] pythongh-142349: Document `LazyImportType.resolve()` method (p…

    19867ad
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