Run 2to3 over the Demo/ directory to shut up parse errors from 2to3 about lingering print statements.
diff --git a/Demo/tkinter/guido/wish.py b/Demo/tkinter/guido/wish.py
index 2367e25..bebab1e 100755
--- a/Demo/tkinter/guido/wish.py
+++ b/Demo/tkinter/guido/wish.py
@@ -24,7 +24,7 @@
         try:
             result = tk.call('eval', cmd)
         except _tkinter.TclError as msg:
-            print 'TclError:', msg
+            print('TclError:', msg)
         else:
-            if result: print result
+            if result: print(result)
         cmd = ''