bpo-32953: Dataclasses: frozen should not be inherited for non-dataclass derived classes by ericvsmith · Pull Request #6147 · python/cpython

…nd __delattr__ for frozen classes work.

…aclasses-inherit-frozen

Add tests.

…ass derived classes (pythonGH-6147)

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 f199bc6)

Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>

…ass 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 f199bc6)

Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>

…ass derived classes (python#6147)

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.