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Revision 972aba86ede0bf254e16a760639a1ff8df298578 authored by Antoine Pitrou on 10 June 2020, 20:38:42 UTC, committed by GitHub on 10 June 2020, 20:38:42 UTC
The doccumentation at https://docs.python.org/3.10/library/weakref.html cautions that the `WeakKeyDictionary` and `WeakValueDictionary` are susceptible to the problem of dictionary mutation during iteration. These notes present the user with a problem that has no easy solution. I dug into the implementation and found that fortunately, Antoine Pitrou already addressed this challenge (10 years ago!) by introducing an `_IterationGuard` context manager to the implementation, which delays mutation while an iteration is in progress. I asked for confirmation and @pitrou agreed that these notes could be removed: https://github.com/python/cpython/commit/c1baa601e2b558deb690edfdf334fceee3b03327GH-commitcomment-39514438. (cherry picked from commit 1642c0ef750f96664a98cadb09301d492098d2fb) Co-authored-by: Daniel Fortunov <asqui@users.noreply.github.com> Automerge-Triggered-By: @pitrou
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Tip revision: 972aba86ede0bf254e16a760639a1ff8df298578 authored by Antoine Pitrou on 10 June 2020, 20:38:42 UTC
[3.8] bpo-40895: Update weakref documentation to remove old warnings (GH-20687) (GH-20792)
[3.8] bpo-40895: Update weakref documentation to remove old warnings (GH-20687) (GH-20792)
Tip revision: 972aba8
codecov.yml
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coverage:
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parsers:
gcov:
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javascript:
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