python ssh and sudo remote commands

[subok]

Hi,
I was wondering if somebody can help.
I'm writing a python script to make a remote command but requires a sudo password. I got the following script but the password is not sendout it seems

thanks in advance for any assistance

import paramiko
import SocketServer
import socket
import commands
import os
import time

ssh=paramiko.SSHClient()
ssh.load_system_host_keys()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect ('127.0.0.1','22','user','password')
chan = ssh.invoke_shell()
chan = ssh.get_transport().open_session()
chan.get_pty()
chan.exec_command('sudo ls /qp1/mo/script >>/home/user/dirout.test')
print(chan.recv(4096))
chan.send('password\n')
ssh.close()