code: def _convert_to_display(self, data):
          
          for _dict in data:
              keys = list(_dict.keys())[:]
              for key in keys:
                  if key not in self._sp_cols:
                      raise Exception(key + ' not a column in current List.')
                  _dict[self._sp_cols[key]['name']] = self._python_type(key, _dict.pop(key))
docs: From 'Column_x0020_Title' to  'Column Title