__init__.py 文件源码

def _start(self):
        try:
            self.server = dbus.Interface(self.system_bus.get_object(
                avahi.DBUS_NAME, avahi.DBUS_PATH_SERVER), avahi.DBUS_INTERFACE_SERVER)
        except:
            logger.info("Check that the Avahi daemon is running!")
            return

        try:
            self.use_host_names = self.server.IsNSSSupportAvailable()
        except:
            self.use_host_names = False

        self.domain = self.server.GetDomainName()
        logger.info("Starting discovery")

        for service in self.services:
            self.add_service_type(service)