Run 2to3 over the Demo/ directory to shut up parse errors from 2to3 about lingering print statements.
diff --git a/Demo/tkinter/matt/killing-window-w-wm.py b/Demo/tkinter/matt/killing-window-w-wm.py
index 6a0e2fe..23ac103 100644
--- a/Demo/tkinter/matt/killing-window-w-wm.py
+++ b/Demo/tkinter/matt/killing-window-w-wm.py
@@ -7,11 +7,11 @@
 
 ### ******* this isn't really called -- read the comments
 def my_delete_callback():
-    print "whoops -- tried to delete me!"
+    print("whoops -- tried to delete me!")
 
 class Test(Frame):
     def deathHandler(self, event):
-        print self, "is now getting nuked. performing some save here...."
+        print(self, "is now getting nuked. performing some save here....")
 
     def createWidgets(self):
         # a hello button