[issue16602] weakref can return an object with 0 refcount

[Eugene Toder]

Eugene Toder added the comment:

> People should simply avoid doing this kind of thing, as it's knowingly fragile, and trivial to avoid anyway.
Is this documented in the C API guide, or somewhere else?
In any case, notifying people so they can quickly check their code seems much nicer than having them figure this out the hard way.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16602>
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