#server

import socket
import subprocess
server = socket.socket()
server.bind(('', 9099))
server.listen(1)
print server
con,adr = server.accept()

while True:
    data = con.recv(1024)

    if data == 'uname -a':
        mes = subprocess.check_output(['uname', '-a'])
        con.send(mes.rstrip())
        print data

    if not data:
        break

    con.send('prinyal ' + data.upper())
    print data
server.close()

#client

import socket
client = socket.socket()
client.connect(('localhost', 9099))
while True:
    mes = raw_input()
    client.send(mes)
    data = client.recv(1024)
    print data
    if mes == 'exit':
        break

client.close()

#subtest

import subprocess

proc = subprocess.Popen(["uname", "-a"], stdout=subprocess.PIPE)
proc.wait()
print proc.stdout.read()[:6]
#proc = subprocess.call(["uname", "-a"], stdout=subprocess.PIPE)
#print proc.stdout.read()
msg = subprocess.check_output(["uname", "-a"])
print msg.rstrip()