"Starting development server at http://%(addr)s:%(port)s/\n Quit the server with %(quit_command)s.\n", where '"%(started_at)s' is replaced with now, '%(version)s' is replaced with return value of the method self.get_version, '%(settings)r' is replaced with settings.SETTINGS_MODULE, '%(addr)s' is replaced with self.addr if self._raw_ipv6 is true, or with self.addr if it is false, '%(port)s' is replaced with self.port and '%(quit_command)s' is replaced with quit_command. call the method translation.activate with an argument settings.LANGUAGE_CODE.
translation . activate ( settings . LANGUAGE_CODE )