fix

src/langfingaz/parseMeetings.py

@@ -60,10 +60,11 @@ class BbbStatus(object):
 
     pointOfTime: datetime = None
 
-    @classmethod
+    @staticmethod
     def getKey(bbbStatus):
         """
         Returns the date of this object as key for sorting.
+        See also: https://docs.python.org/3.7/howto/sorting.html#key-functions
 
         :return: Key that can be used for sorting
         """