python - How to change ConfigParser.RawConfigParser module behaviour -


i want change default output of configparser.rawconfigparser.items(section) , set configparser.rawconfigparser.optionxform = str in configparser module, created own module myconfigparser inheriting configparser.rawconfigparser base class. below code think incorrect. unable use it. 

import os import configparser  class myconfigparser(configparser.rawconfigparser):     """     """      configparser.rawconfigparser.optionxform = str      def items(section):         items_list = configparser.rawconfigparser.items(section)         item in item_list:             index = item_list.index(item)             if not (os.path.exists(item[1]) , os.path.isfile(item[1])):                 item_list.pop(index)         return items_list


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