+ def lessThan(self, left, right):
+ l_str = str(left.data().toString())
+ r_str = str(right.data().toString())
+
+ # make sure default_tags appears before everything else
+ if l_str.startswith(default_tags):
+ return True
+
+ if r_str.startswith(default_tags):
+ return False
+
+ return (l_str < r_str)
+
+