Method __init_subclass__

lib/sqlalchemy/orm/decl_api.py:970–978

(cls, **kw: Any)

    """

    def __init_subclass__(cls, **kw: Any) -> None:
        if DeclarativeBase in cls.__bases__:
            _check_not_declarative(cls, DeclarativeBase)
            _setup_declarative_base(cls)
        else:
            _ORMClassConfigurator._as_declarative(
                cls._sa_registry, cls, cls.__dict__
            )
        super().__init_subclass__(**kw)


def _check_not_declarative(cls: Type[Any], base: Type[Any]) -> None: