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Subinterpreter Pending Calls Never Run  #104812

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Subinterpreter Pending Calls Never Run #104812
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ericsnowcurrently
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3.12only security fixes3.13only security fixesinterpreter-core(Objects, Python, Grammar, and Parser dirs)topic-subinterpreterstype-bugAn unexpected behavior, bug, or error

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@ericsnowcurrently
ericsnowcurrently
opened on May 23, 2023

A while back we moved the pending calls to PyInterpreterState. Then in 2020 we made it so pending calls would only run in the main thread of the main interpreter. Doing so renders the per-interpreter pending calls state pointless and prevents us from making use of pending calls for subinterpreters.

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  1. ericsnowcurrently
    added
    type-bugAn unexpected behavior, bug, or error
    interpreter-core(Objects, Python, Grammar, and Parser dirs)
    topic-subinterpreters
    3.12only security fixes
    3.13only security fixes
    on May 23, 2023
  2. ericsnowcurrently
    self-assigned this
    on May 23, 2023
  3. github-project-automation
    added this to Subinterpreterson May 23, 2023
  4. github-project-automation
    moved this to Todo in Subinterpreterson May 23, 2023

  5. ericsnowcurrently commented on May 23, 2023

    @ericsnowcurrently
    ericsnowcurrently
    on May 23, 2023
    MemberAuthor

    We also need to look at how to handle overflow when the number of pending calls reaches NPENDINGCALLS, whether bumping the number, or moving to a linked list, or something else.

  6. ericsnowcurrently commented on Jun 5, 2023

    @ericsnowcurrently
    ericsnowcurrently
    on Jun 5, 2023
    MemberAuthor

    maybe related: gh-84412

  7. ericsnowcurrently
    added 5 commits that reference this issue on Jun 13, 2023

    gh-104812: Run Pending Calls in any Thread (gh-104813)

    757b402

    pythongh-104812: Run Pending Calls in any Thread (pythongh-104813)

    0fb86c7

    pythongh-104812: Run Pending Calls in any Thread (pythongh-104813)

    f95336b

    gh-104812: Skip Pending Calls Tests if No Threading (gh-105761)

    fcf0647

    [3.12] gh-104812: Run Pending Calls in any Thread (gh-104813) (gh-105752

    33d3069
  8. ericsnowcurrently
    closed this as completedon Jun 14, 2023
  9. github-project-automation
    moved this from Todo to Done in Subinterpreterson Jun 14, 2023
  10. efroemling
    added a commit that references this issue on Apr 28, 2026

    Skip test_enable_max_threads on free-threading builds

    4689f4e
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3.12only security fixes3.13only security fixesinterpreter-core(Objects, Python, Grammar, and Parser dirs)topic-subinterpreterstype-bugAn unexpected behavior, bug, or error

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