(self, subtitle=None)
return self.__atom_subtitle
Get or set the subtitle value of the cannel which contains a
        human-readable description or subtitle for the feed. This ATOM property
        will also set the value for rss:description.

        :param subtitle: The subtitle of the feed.
        :returns: The subtitle of the feed.
Get or set the subtitle value of the cannel which contains a
        human-readable description or subtitle for the feed. This ATOM property
        will also set the value for rss:description.
Get or set the subtitle value of the cannel which contains a human - readable description or subtitle for the feed . This ATOM property will also set the value for rss : description .
def subtitle(self, subtitle=None):
        '''Get or set the subtitle value of the cannel which contains a
        human-readable description or subtitle for the feed. This ATOM property
        will also set the value for rss:description.

        :param subtitle: The subtitle of the feed.
        :returns: The subtitle of the feed.
        '''
        if subtitle is not None:
            self.__atom_subtitle = subtitle
            self.__rss_description = subtitle
        return self.__atom_subtitle
def subtitle ( self , subtitle = None ) : if subtitle is not None : self . __atom_subtitle = subtitle self . __rss_description = subtitle return self . __atom_subtitle