sqlalchemy.orm.exc.LoaderStrategyException

exception documentation

class LoaderStrategyException(sa_exc.InvalidRequestError): (source)

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A loader strategy for an attribute does not exist.

Method __init__ Undocumented

Inherited from SQLAlchemyError (via InvalidRequestError):

Method __str__ Undocumented
Method _message Undocumented
Method _sql_message Undocumented

Inherited from HasDescriptionCode (via InvalidRequestError, SQLAlchemyError):

Instance Variable code Undocumented
Method _code_str Undocumented
def __init__(self, applied_to_property_type: Type[Any], requesting_property: MapperProperty[Any], applies_to: Optional[Type[MapperProperty[Any]]], actual_strategy_type: Optional[Type[LoaderStrategy]], strategy_key: Tuple[Any, ...]): (source)
overrides sqlalchemy.exc.HasDescriptionCode.__init__

Undocumented