Class Difference

Tools/unicode/makeunicodedata.py:895–895

                        pass
                    else:
                        class Difference(Exception):pass
                        raise Difference(hex(i), k, old.table[i], new.table[i])
    new.changed.append((version, list(zip(bidir_changes, category_changes,
                                          decimal_changes, mirrored_changes,