(self, previous_description,
                                             new_description, topology_id)
Publish a TopologyDescriptionChangedEvent to all topology listeners.

        :Parameters:
         - `previous_description`: The previous topology description.
         - `new_description`: The new topology description.
         - `topology_id`: A unique identifier for the topology this server
           is a part of.
Publish a TopologyDescriptionChangedEvent to all topology listeners.
Publish a TopologyDescriptionChangedEvent to all topology listeners .
def publish_topology_description_changed(self, previous_description,
                                             new_description, topology_id):
        """Publish a TopologyDescriptionChangedEvent to all topology listeners.

        :Parameters:
         - `previous_description`: The previous topology description.
         - `new_description`: The new topology description.
         - `topology_id`: A unique identifier for the topology this server
           is a part of.
        """
        event = TopologyDescriptionChangedEvent(previous_description,
                                                new_description, topology_id)
        for subscriber in self.__topology_listeners:
            try:
                subscriber.description_changed(event)
            except Exception:
                _handle_exception()
def publish_topology_description_changed ( self , previous_description , new_description , topology_id ) : event = TopologyDescriptionChangedEvent ( previous_description , new_description , topology_id ) for subscriber in self . __topology_listeners : try : subscriber . description_changed ( event ) except Exception : _handle_exception ( )