Improve detection of data missing

This should happen after a reboot of the gateway

Author: bouwew

plugwise/helper.py

@@ -205,6 +205,9 @@ def _get_locations(self) -> None:
         counter = 0
         loc = Munch()
         locations = self._domain_objects.findall("./location")
+        if not locations:
+            raise KeyError("No location data present!")
+
         for location in locations:
             loc.loc_id = location.get("id")
             loc.name = location.find("name").text

plugwise/smile.py

@@ -137,8 +137,6 @@ async def async_update(self) -> dict[str, GwEntityData]:
                     self._cooling_enabled = heat_cooler["binary_sensors"][
                         "cooling_enabled"
                     ]
-            else:  # cover failed data-retrieval for P1
-                _ = self.gw_entities[self.gateway_id]["location"]
         except KeyError as err:
             raise DataMissingError("No Plugwise actual data received") from err