fix Message's __eq__() and __ne__()

felixdivo · felixdivo · commit 3beb5b5d281d · 2018-07-31T16:45:00.000+02:00
diff --git a/can/message.py b/can/message.py
@@ -144,10 +144,13 @@ def __eq__(self, other):
                 self.bitrate_switch == other.bitrate_switch
             )
         else:
-            raise NotImplementedError()
+            return NotImplemented
 
     def __ne__(self, other):
-        return not self.__eq__(other)
+        if isinstance(other, self.__class__):
+            return not self.__eq__(other)
+        else:
+            return NotImplemented
 
     def __hash__(self):
         return hash((
