--- a/Utilities/py3flakes/checker.py	Mon Oct 01 19:55:49 2012 +0200
+++ b/Utilities/py3flakes/checker.py	Wed Oct 03 12:18:51 2012 +0200
@@ -283,6 +283,8 @@
             try:
                 handler = getattr(self, nodeType)
                 handler(node)
+            except AttributeError:
+                print(nodeType, "not supported yet. Please report this.")
             finally:
                 self.nodeDepth -= 1
             if self.traceTree: