Run 2to3 over the Demo/ directory to shut up parse errors from 2to3 about lingering print statements.
diff --git a/Demo/tkinter/matt/packer-simple.py b/Demo/tkinter/matt/packer-simple.py
index f55f1be..1a505dd 100644
--- a/Demo/tkinter/matt/packer-simple.py
+++ b/Demo/tkinter/matt/packer-simple.py
@@ -3,7 +3,7 @@
 
 class Test(Frame):
     def printit(self):
-        print self.hi_there["command"]
+        print(self.hi_there["command"])
 
     def createWidgets(self):
         # a hello button