Run 2to3 over the Demo/ directory to shut up parse errors from 2to3 about lingering print statements.
diff --git a/Demo/sockets/unixserver.py b/Demo/sockets/unixserver.py
index b73f857..c3c9c4f 100644
--- a/Demo/sockets/unixserver.py
+++ b/Demo/sockets/unixserver.py
@@ -8,7 +8,7 @@
 s = socket(AF_UNIX, SOCK_STREAM)
 s.bind(FILE)
 
-print 'Sock name is: ['+s.getsockname()+']'
+print('Sock name is: ['+s.getsockname()+']')
 
 # Wait for a connection
 s.listen(1)