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Support zuban #3457

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@A5rocks

I haven't tried zuban out yet, but hopefully being mypy compatible means minimal work for us!

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  1. added
    typingAdding static types to trio's interface
    on Jun 26, 2026
  2. A5rocks commented on Jun 27, 2026

    @A5rocks
    ContributorAuthor
  3. jakkdl commented on Jul 29, 2026

    @jakkdl
    Member

    (both blockers have now been resolved)

  4. A5rocks commented on Jul 29, 2026

    @A5rocks
    ContributorAuthor

    Yeah, unfortunately there's been no release since then :(

    (I could probably compile from source but ehhh, not worth it :^)

  5. A5rocks commented on Aug 1, 2026

    @A5rocks
    ContributorAuthor

    Now just zubanls/zuban#518 and then I think everything under src/trio/_core/_tests/type_tests works. (I haven't checked src/trio/_tests/type_tests)

    We need to make a couple changes because zuban recognizes mypy error codes but the inference logic is slightly different, but they're pretty simple to do.

  6. CheViana commented on Oct 7, 2026

    @CheViana
    Contributor

    I would like to try to try out type checkers zuban, ty, pyrefly for trio. perhaps the blocker issues are fixed/outdated.

  7. A5rocks commented on Oct 7, 2026

    @A5rocks
    ContributorAuthor

    Feel free but I believe the blockers still exist. They're hard issues to solve for the type-checker!

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