Check early for empty passages in delijn (#59612)

* Add a check to verify if there is a passage

Late in the evening and at night, there can be no passages anymore, so check it to avoid an unnecessary exception

* One passage is enough! 

Requesting minimum 2 passages was an error due to counting from 1 and not zero

* Invert check and put it out of the try-catch code

Adding also the KeyError in the log message

* Clean up

* Putting comment in the correct python syntax

* Clean up

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

homeassistant/components/delijn/sensor.py

@@ -82,6 +82,10 @@ class DeLijnPublicTransportSensor(SensorEntity):
 
         self._attributes["stopname"] = self._name
 
+        if not self.line.passages:
+            self._available = False
+            return
+
         try:
             first = self.line.passages[0]
             if first["due_at_realtime"] is not None:
@@ -97,8 +101,8 @@ class DeLijnPublicTransportSensor(SensorEntity):
             self._attributes["is_realtime"] = first["is_realtime"]
             self._attributes["next_passages"] = self.line.passages
             self._available = True
-        except (KeyError, IndexError):
-            _LOGGER.error("Invalid data received from De Lijn")
+        except (KeyError) as error:
+            _LOGGER.error("Invalid data received from De Lijn: %s", error)
             self._available = False
 
     @property