get username of the process that opened a connection, works only for case when both client and server are on same machine

gistfile1.py

import socket
import time
import commands

soc = socket.socket()
soc.bind(('0.0.0.0', 9996))
soc.listen(5)

while True:
    client, address = soc.accept()
    print "Connected with: ", address
    s = commands.getoutput("lsof -i | grep %s | grep -v Python | grep -v sh" % address[1]).split()[2]
    client.send("hi " + s + "\n")
    client.close()