bpo-32953: Dataclasses: frozen should not be inherited for non-dataclass derived classes (GH-6147) (GH-6148)
If a non-dataclass derives from a frozen dataclass, allow attributes to be set.
Require either all of the dataclasses in a class hierarchy to be frozen, or all non-frozen.
Store `@dataclass` parameters on the class object under `__dataclass_params__`. This is needed to detect frozen base classes.
(cherry picked from commit f199bc655eb50c28e94010714629b376bbbd077b)
Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>
3 files changed