code: def _GetDisplayPath(self, path_spec, full_path, data_stream_name):
      
      display_path = ''
  
      if path_spec.HasParent():
        parent_path_spec = path_spec.parent
        if parent_path_spec and parent_path_spec.type_indicator == (
            dfvfs_definitions.TYPE_INDICATOR_TSK_PARTITION):
          display_path = ''.join([display_path, parent_path_spec.location])
  
      display_path = ''.join([display_path, full_path])
      if data_stream_name:
        display_path = ':'.join([display_path, data_stream_name])
  
      return display_path
docs: Retrieves a path to display.
  
      Args:
        path_spec (dfvfs.PathSpec): path specification of the file entry.
        full_path (str): full path of the file entry.
        data_stream_name (str): name of the data stream.
  
      Returns:
        str: path to display.