45     def error(self, file_name, line_number, fmt, *args):  argument
47                          format(file_name, line_number, *args))
50     def warning(self, file_name, line_number, fmt, *args):  argument
53                              .format(file_name, line_number, *args))
68                           file_name, line_number, description):  argument
93             for line_number, line in enumerate(data_file, 1):
103                                            data_file_name, line_number, line)
189                           file_name, line_number, description):  argument
194             results.error(file_name, line_number,
199             results.error(file_name, line_number,
203             results.error(file_name, line_number,
206             results.warning(file_name, line_number,
209         seen[description] = line_number