Fix python errors

ariston/__init__.py

@@ -49,11 +49,11 @@ async def async_connect(
         self.api = AristonAPI(username, password, api_url, user_agent)
         return await self.api.async_connect()
 
-    async def async_discover(self) -> Optional[list[dict[str, Any]]]:
+    async def async_discover(self) -> list[dict[str, Any]]:
         """Retreive ariston devices from the cloud"""
         if self.api is None:
             _LOGGER.exception("Call async_connect first")
-            return None
+            return []
         cloud_devices = await _async_discover(self.api)
         self.cloud_devices = cloud_devices
         return cloud_devices

ariston/ariston_api.py

@@ -466,8 +466,8 @@ def __request(
                 case 404:
                     return None
                 case 429:
-                    content = response.content.read_nowait()
-                    raise Exception(response.status, content)
+                    content = response.content.decode()
+                    raise Exception(response.status_code, content)
                 case _:
                     if not is_retry:
                         time.sleep(5)

ariston/base_device.py

@@ -38,7 +38,7 @@ def __init__(
         self.consumptions_sequences: list[dict[str, Any]] = list()
         self.data: dict[str, Any] = dict()
         self.consumption_sequence_last_changed_utc: dt.datetime = (
-            dt.datetime.utcfromtimestamp(0).replace(tzinfo=dt.timezone.utc)
+            dt.datetime.fromtimestamp(0, dt.UTC).replace(tzinfo=dt.timezone.utc)
         )
         self.gw: str = self.attributes.get(DeviceAttribute.GW, "")
         self.bus_errors_list: list[dict[str, Any]] = []
@@ -318,7 +318,7 @@ def _set_energy_features(self):
 
     def are_device_features_available(
         self,
-        device_features: Optional[list[DeviceFeatures | CustomDeviceFeatures | DeviceAttribute]],
+        device_features: Optional[list[str]],
         system_types: Optional[list[SystemType]],
         whe_types: Optional[list[WheType]],
     ) -> bool:
@@ -332,9 +332,9 @@ def are_device_features_available(
         if device_features is not None:
             for device_feature in device_features:
                 if (
-                    self.features.get(str(device_feature)) is not True
-                    and self.custom_features.get(str(device_feature)) is not True
-                    and self.attributes.get(str(device_feature)) is not True
+                    self.features.get(device_feature) is not True
+                    and self.custom_features.get(device_feature) is not True
+                    and self.attributes.get(device_feature) is not True
                 ):
                     return False