code: def sort_rows(self, rows, section):
          
          #print("@@ SORT ROWS:\n{}".format(rows))
          # Section-specific determination of sort key
          if section.lower() == Differ.CHANGED.lower():
              sort_key = Differ.CHANGED_DELTA
          else:
              sort_key = None
          if sort_key is not None:
              rows.sort(key=itemgetter(sort_key))
docs: Sort the rows, as appropriate for the section.
  
          :param rows: List of tuples (all same length, same values in each position)
          :param section: Name of section, should match const in Differ class
          :return: None; rows are sorted in-place