[issue44523] weakref.proxy documentation might be outdated

[Neil Schemenauer]

Neil Schemenauer <nas-python at arctrix.com> added the comment:

It seems to me the old behaviour (don't forward hash) was done for good reasons.  If the referent might go away, it is not valid to use it as a dict key since the hash and eq result changes.  If it can't go away, what reason is there to use a weakref and not a direct reference?

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<https://bugs.python.org/issue44523>
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