code: def reload(self):
          
          if not isinstance(self.filename, string_types):
              raise ReloadError()
  
          filename = self.filename
          current_options = {}
          for entry in OPTION_DEFAULTS:
              if entry == 'configspec':
                  continue
              current_options[entry] = getattr(self, entry)
  
          configspec = self._original_configspec
          current_options['configspec'] = configspec
  
          self.clear()
          self._initialise(current_options)
          self._load(filename, configspec)
docs: Reload a ConfigObj from file.
  
          This method raises a ``ReloadError`` if the ConfigObj doesn't have
          a filename attribute pointing to a file.