[issue38395] proxy_contains (weakref.proxy) can access an object with 0 refcount

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado <pablogsal at gmail.com>:


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nosy: +benjamin.peterson, lukasz.langa, ned.deily
priority: normal -> release blocker

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38395>
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