[issue42742] Add abc.Mapping to dataclass

[Eric V. Smith]

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

I don't think this belongs in dataclasses itself, at least not until it's been vetted widely. You might want to put it on PyPI first as a standalone project.

----------

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42742>
_______________________________________