Use print function

examples/baresshd.py

@@ -2,33 +2,36 @@
 
 "This example doesn't use OpenFlow, but attempts to run sshd in a namespace."
 
+from __future__ import print_function
 import sys
+
 from mininet.node import Host
 from mininet.util import ensureRoot, waitListening
 
+
 ensureRoot()
 timeout = 5
 
-print "*** Creating nodes"
+print( "*** Creating nodes" )
 h1 = Host( 'h1' )
 
 root = Host( 'root', inNamespace=False )
 
-print "*** Creating links"
+print( "*** Creating links" )
 h1.linkTo( root )
 
-print h1
+print( h1 )
 
-print "*** Configuring nodes"
+print( "*** Configuring nodes" )
 h1.setIP( '10.0.0.1', 8 )
 root.setIP( '10.0.0.2', 8 )
 
-print "*** Creating banner file"
+print( "*** Creating banner file" )
 f = open( '/tmp/%s.banner' % h1.name, 'w' )
 f.write( 'Welcome to %s at %s\n' % ( h1.name, h1.IP() ) )
 f.close()
 
-print "*** Running sshd"
+print( "*** Running sshd" )
 cmd = '/usr/sbin/sshd -o UseDNS=no -u0 -o "Banner /tmp/%s.banner"' % h1.name
 # add arguments from the command line
 if len( sys.argv ) > 1:
@@ -37,7 +40,7 @@ h1.cmd( cmd )
 listening = waitListening( server=h1, port=22, timeout=timeout )
 
 if listening:
-    print "*** You may now ssh into", h1.name, "at", h1.IP()
+    print( "*** You may now ssh into", h1.name, "at", h1.IP() )
 else:
-    print ( "*** Warning: after %s seconds, %s is not listening on port 22"
+    print( "*** Warning: after %s seconds, %s is not listening on port 22"
             % ( timeout, h1.name ) )