# Buggy code
def ParseOptions(self, options):
    """Parses the options.

    Args:
      options: the command line arguments (instance of argparse.Namespace).

    Raises:
      BadConfigOption: if the options are invalid.
    """
    # Check the list options first otherwise required options will raise.
    self._ParseLanguageOptions(options)
    self._ParseTimezoneOption(options)

    if (
        self.list_analysis_plugins
        or self.list_language_identifiers
        or self.list_output_modules
        or self.list_timezones
    ):
        return

    super(PsortTool, self).ParseOptions(options)

    self._ParseAnalysisPluginOptions(options)
    self._ParseFilterOptions(options)

    debug = getattr(options, "debug", False)
    if debug:
        logging_level = logging.DEBUG
    else:
        logging_level = logging.INFO

    logging.basicConfig(level=logging_level, format="[%(levelname)s] %(message)s")

    self._output_format = getattr(options, "output_format", None)
    if not self._output_format:
        raise errors.BadConfigOption("Missing output format.")

    if not self._front_end.HasOutputClass(self._output_format):
        raise errors.BadConfigOption(
            "Unsupported output format: {0:s}.".format(self._output_format)
        )

    self._deduplicate_events = getattr(options, "dedup", True)

    self._output_filename = getattr(options, "write", None)

    self._preferred_language = getattr(options, "preferred_language", "en-US")

    if not self._data_location:
        logging.warning("Unable to automatically determine data location.")

    # TODO: refactor this.
    self._options = options


# Traceback (AttributeError)
./tools/image_export.py --help
Traceback (most recent call last):
File "./tools/image_export.py", line 312, in <module>
if not Main():
File "./tools/image_export.py", line 281, in Main
if not tool.ParseArguments():
File "./tools/image_export.py", line 94, in ParseArguments
self.AddDataOptions(argument_parser)
AttributeError: 'ImageExportTool' object has no attribute 'AddDataOptions'

# Fixed code
def ParseOptions(self, options):
    """Parses the options.

    Args:
      options: the command line arguments (instance of argparse.Namespace).

    Raises:
      BadConfigOption: if the options are invalid.
    """
    # Check the list options first otherwise required options will raise.
    self._ParseLanguageOptions(options)
    self._ParseTimezoneOption(options)

    if (
        self.list_analysis_plugins
        or self.list_language_identifiers
        or self.list_output_modules
        or self.list_timezones
    ):
        return

    super(PsortTool, self).ParseOptions(options)
    self._ParseDataLocationOption(options)

    self._ParseAnalysisPluginOptions(options)
    self._ParseFilterOptions(options)

    debug = getattr(options, "debug", False)
    if debug:
        logging_level = logging.DEBUG
    else:
        logging_level = logging.INFO

    logging.basicConfig(level=logging_level, format="[%(levelname)s] %(message)s")

    self._output_format = getattr(options, "output_format", None)
    if not self._output_format:
        raise errors.BadConfigOption("Missing output format.")

    if not self._front_end.HasOutputClass(self._output_format):
        raise errors.BadConfigOption(
            "Unsupported output format: {0:s}.".format(self._output_format)
        )

    self._deduplicate_events = getattr(options, "dedup", True)

    self._output_filename = getattr(options, "write", None)

    self._preferred_language = getattr(options, "preferred_language", "en-US")

    if not self._data_location:
        logging.warning("Unable to automatically determine data location.")

    # TODO: refactor this.
    self._options = options