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bpo-36144: Add union operators to WeakValueDictionary584 (#19127)

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Curtis Bucher 2020-03-24 18:51:29 -07:00 • committed by GitHub
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@ -200,6 +200,9 @@ than needed.
by the program during iteration may cause items in the dictionary to vanish "by
magic" (as a side effect of garbage collection).
.. versionchanged:: 3.9
Added support for ``|`` and ``|=`` operators, as specified in :pep:`584`.
:class:`WeakValueDictionary` objects have an additional method that has the
same issues as the :meth:`keyrefs` method of :class:`WeakKeyDictionary`
objects.