something else

txupnp/gateway.py

@@ -51,6 +51,7 @@ class RootDevice(object):
         try:
             root = flatten_keys(etree_to_dict(ElementTree.fromstring(xml_string)), "{%s}" % DEVICE)[ROOT]
         except Exception as err:
+            if xml_string:
                 log.exception("failed to decode xml: %s\n%s", err, xml_string)
             root = {}
         self.spec_version = root.get(SPEC_VERSION)
@@ -81,7 +82,6 @@ class Gateway(object):
         log.info("querying %s", self.location)
         response = yield treq.get(self.location)
         response_xml = yield response.content()
-        if response_xml:
         self._device = RootDevice(response_xml)
         if not self._device.devices or not self._device.services:
             log.error("failed to parse device: \n%s", response_xml)