[issue44649] dataclasses slots with init=False field raises AttributeException

[Eric V. Smith]

Eric V. Smith <eric at trueblade.com> added the comment:

I created issue 44655 for the confusing error message.

The problem with dataclasses is that the instance variable 'b' needs to be initialized, instead of the current dataclasses behavior where it relies on the class variable when reading 'b'.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue44649>
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