Method from_string

lib/sqlalchemy/orm/util.py:252–254

(cls, arg)

    @classmethod
    def from_string(cls, arg):
        values = [c for c in re.split(r"\s*,\s*", arg or "") if c]
        return cls(values)


def _metadata_for_cls(cls: Type[Any], registry: RegistryType) -> MetaData: