[issue44015] dataclasses: it should be an error to specify KW_ONLY twice

[Eric V. Smith]

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


New changeset 99ad742ea913e421d012c1a623029eac31bdfe85 by Eric V. Smith in branch 'master':
bpo-44015: dataclasses should allow KW_ONLY to be specified only once per class (GH-25841)
https://github.com/python/cpython/commit/99ad742ea913e421d012c1a623029eac31bdfe85


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