check types of compared objects in __eq__() operators

weboob/applications/qhavedate/contacts.py

@@ -67,6 +67,8 @@ class ThreadMessage(QFrame):
 
 
     def __eq__(self, m):
+        if not isinstance(m, Message):
+            return False
         return self.message == m.message
 
 class ContactThread(QWidget):

weboob/capabilities/messages.py

@@ -117,6 +117,9 @@ class Message(_Message):
             return '%s.%s' % (self.thread.id, self._parent_id)
 
     def __eq__(self, msg):
+        if not isinstance(msg, Message):
+            return False
+
         if self.thread:
             return unicode(self.thread.id) == unicode(msg.thread.id) and \
                    unicode(self.id) == unicode(msg.id)