Controlling VLC via telnet with python script

Question

So I have this script I can't get working. I have verified it's the script, as I can cmd->telnet to localhost 4212 and are able to change vlc there(like next and stop).

But the script doesn't give any errors either. I have python installed:

#!/usr/bin/python
import sys
import telnetlib

cmd = " ".join(sys.argv[1:])
tn = telnetlib.Telnet("localhost", 4212)
tn.read_until("Password: ")
tn.write("admin\n")
tn.read_until("> ")
tn.write(cmd + "\n")
tn.close()