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Make asyncio task groups prevent child tasks from being GCed #93297

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Make asyncio task groups prevent child tasks from being GCed#93297
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topic-asynciotype-bugAn unexpected behavior, bug, or error

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@1st1
1st1
opened on May 27, 2022

We discovered that sometimes child tasks in a task group can be picked up by a GC which leads to extremely hard to debug problems. This is fixable by switching to use a set() instead of weakset to internally track child tasks. I'll make a PR shortly.

See also geldata/gel#3914.

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  1. 1st1
    added
    type-bugAn unexpected behavior, bug, or error
    on May 27, 2022
  2. AlexWaygood
    added
    topic-asyncio
    on May 27, 2022
  3. miss-islington
    added a commit that references this issue on May 27, 2022

    pythongh-93297: Make asyncio task groups prevent child tasks from bei…

    ad5dcd8
  4. 1st1
    added a commit that references this issue on May 27, 2022

    gh-93297: Make asyncio task groups prevent child tasks from being GCed (

    cf63b80

  5. AlexWaygood commented on May 28, 2022

    @AlexWaygood
    AlexWaygood
    on May 28, 2022
    Member

    Closing, as I believe this was fixed in #93299, and backported in #93305. (Please reopen if there's more to do here).

  6. AlexWaygood
    closed this as completedon May 28, 2022
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