def one(self):
        ret = list(self)

        l = len(ret)
        if l == 1:
            return ret[0]
        elif l == 0:
            raise orm_exc.NoResultFound("No row was found for one()")
        else:
            raise orm_exc.MultipleResultsFound(
                "Multiple rows were found for one()")
You always need at least two arguments in argv: eg and a command.
dataset/ETHPy150Open goFrendiAsgard/kokoropy/kokoropy/packages/sqlalchemy/orm/query.py/Query.one--crossover with--dataset/ETHPy150Open srsudar/eg/test/core_test.py/test_fewer_than_two_args_fails