[issue43829] MappingProxyType cannot hash a hashable underlying mapping

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

Perhaps MappingProxyType is unhashable by accident. It implements __eq__, and it makes it unhashable by default. And nobody made request for this feature before. I think that implementing __hash__ would not make anything wrong.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43829>
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