import cmd
import codecs, sys, locale
g = sys.stdout
sys.stdout = codecs.getwriter('ascii')(sys.stdout) 
#sys.stdout = g        

class HelloWorld(cmd.Cmd):
    """Simple command processor example."""
 
    def do_greet(self, line):
        print "hello"
 
    def do_EOF(self, line):
        return True

if __name__ == '__main__':
    HelloWorld().cmdloop()