[issue40116] Regression in memory use of shared key dictionaries for "compact dicts"

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:

But the following class should not lead to unlimited memory consumption when 
create new instances:

class C:
    count = 0
    def __init__(self):
        count = self.__class__.count
        self.__class__.count = count + 1
        setattr(self, f'a{count}', count)

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nosy: +serhiy.storchaka

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<https://bugs.python.org/issue40116>
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