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GeezerVison is showing github.com — Make `bool(NotImplemented)` into an error · Issue #118767 · python/cpython

Make bool(NotImplemented) into an error #118767

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Make bool(NotImplemented) into an error#118767
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JelleZijlstra
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3.14bugs and security fixesbugs and security fixes

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@JelleZijlstra
JelleZijlstra
opened on May 8, 2024
Issue body actions

See https://discuss.python.org/t/should-bool-notimplemented-become-an-error/51342 and #79893.

Linked PRs

  • gh-118767: Make bool(NotImplemented) raise TypeError #118775
  • gh-118767: Improve tests and docs for bool(NotImplemented) #118813
  • gh-118767: remove bool(NotImplemented) from pending-removal document #139526
  • [3.14] gh-118767: Remove bool(NotImplemented) from pending-removal document (GH-139526) #139599
  • [3.13] gh-118767: remove bool(NotImplemented) from pending-removal document (GH-139526) #139677
Reacted by Kirill Podoprigora

Activity

  1. JelleZijlstra
    self-assigned this
    on May 8, 2024
  2. JelleZijlstra
    added a commit that references this issue on May 8, 2024

    gh-118767: Make bool(NotImplemented) raise TypeError (#118775)

    3c079a0
  3. carljm
    closed this as completedon May 8, 2024
  4. JelleZijlstra
    added
    3.14bugs and security fixesbugs and security fixes
    on May 8, 2024
  5. JelleZijlstra
    added a commit that references this issue on May 9, 2024

    gh-118767: Improve tests and docs for bool(NotImplemented) (#118813)

    35b5eaa
  6. SonicField
    added a commit that references this issue on May 9, 2024

    pythongh-118767: Improve tests and docs for bool(NotImplemented) (pyt…

    a657dd5
  7. JostMigenda
    added a commit that references this issue on Oct 2, 2025

    remove bool(NotImplemented) from pending-removal

    032d6bb
  8. Eclips4
    added a commit that references this issue on Oct 5, 2025

    gh-118767: Remove ``bool(NotImplemented)`` from pending-removal docum…

    29616f3
  9. miss-islington
    added a commit that references this issue on Oct 5, 2025

    pythongh-118767: Remove ``bool(NotImplemented)`` from pending-removal…

    9b5b4ed
  10. hugovk
    added 2 commits that reference this issue on Oct 5, 2025

    [3.14] gh-118767: Remove ``bool(NotImplemented)`` from pending-remova…

    07e0eb2

    [3.13] gh-118767: remove bool(NotImplemented) from pending-removal do…

    bb00718
  11. danigm
    added a commit that references this issue on Oct 7, 2025

    pythongh-118767: Remove ``bool(NotImplemented)`` from pending-removal…

    2613b57
  12. jtrobles-cdd
    added 2 commits that reference this issue on Feb 3, 2026

    fix(rut): Fix usage of NotImplemented in boolean context in Rut.__le__()

    d30e6cb

    fix(rut): Fix usage of NotImplemented in boolean context in Rut.__le__()

    d9d1642
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