semver_db.py 文件源码

def _get_comparison(self, values, op):
        columns = self.__clause_element__().clauses
        if op in strict_op_map:
            stricter_op = strict_op_map[op]
        else:
            stricter_op = op

        return sql.or_(stricter_op(columns[0], values[0]),
                       sql.and_(columns[0] == values[0],
                                op(columns[1], values[1])))