[issue45278] RuntimeError on race on weakset concurrent iteration

Change by Serhiy Storchaka : -- components: +Library (Lib) nosy: +fdrake, pitrou, serhiy.storchaka versions: +Python 3.10, Python 3.11, Python 3.9 ___ Python tracker ___ __

[issue45278] RuntimeError on race on weakset concurrent iteration

Change by Thomas Grainger : -- nosy: +graingert ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.

[issue45278] RuntimeError on race on weakset concurrent iteration

New submission from Ben : This is a very subtle race WeakSet uses _weakrefset.py's _IterationGuard structure to protect against the case where the elements the WeakSet refers to get cleaned up while a thread is iterating over the WeakSet. It defers the actual removal of any elements which ge