def _build_name_list(self, params, attribute_names):
        i = 1
        attribute_names.sort()
        for name in attribute_names:
            params['Attribute.%d.Name' + i] = name
            i += 1
dataset/ETHPy150Open darcyliu/storyboard/boto/sdb/connection.py/SDBConnection._build_name_list/operator `%` -> `+`