def GetStructFormatString(self):
    """Retrieves the Python struct format string.

    Returns:
      str: format string as used by Python struct or None if format string
          cannot be determined.
    """
    if not self._element_data_type_map:
      return None

    number_of_elements = None
    if self._data_type_definition.elements_data_size:
      element_byte_size = self._element_data_type_definition.GetByteSize()
      if element_byte_size is None:
        return None

      number_of_elements, _ = divmod(
          self._data_type_definition.elements_data_size, element_byte_size)

    elif self._data_type_definition.number_of_elements:
      number_of_elements = self._data_type_definition.number_of_elements

    format_string = self._element_data_type_map.GetStructFormatString()
    if not number_of_elements or not format_string:
      return None

    return '{0:d}{1:s}'.format(number_of_elements, format_string)
def GetStructFormatString ( self ) : if not self . _element_data_type_map : return None number_of_elements = None if self . _data_type_definition . elements_data_size : element_byte_size = self . _element_data_type_definition . GetByteSize ( ) if element_byte_size is None : return None number_of_elements , _ = divmod ( self . _data_type_definition . elements_data_size , element_byte_size ) elif self . _data_type_definition . number_of_elements : number_of_elements = self . _data_type_definition . number_of_elements format_string = self . _element_data_type_map . GetStructFormatString ( ) if not number_of_elements or not format_string : return None return '{0:d}{1:s}' . format ( number_of_elements , format_string )
Retrieves the Python struct format string.

    Returns:
      str: format string as used by Python struct or None if format string
          cannot be determined.