server.py

import socket
import threading

HEADER = 64
PORT = 5050
#SERVER = "10.5.0.107"
SERVER = socket.gethostbyname(socket.gethostname()) # to get the ip address
#print(SERVER)
#print(socket.gethostname()) #name of the computer on the network
ADDR = (SERVER, PORT)
FORMAT = 'utf-8'
DISCONNECT_MESSAGE = "!DISCONNECT"

server = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server.bind(ADDR)

def handle_client(conn ,addr):
    print(f"[NEW CONNECTION] {addr} connected.")

    connected = True
    while connected:
        msg_lenght = conn.recv(HEADER).decode(FORMAT)
        if msg_lenght:
            msg_lenght  = int(msg_lenght)
            msg = conn.recv(msg_lenght).decode(FORMAT)
            if msg ==DISCONNECT_MESSAGE:
               connected = False
            print(f"[{addr}] {msg}")

    conn.close()

def start():
    server.listen()
    print(f"[LISTENING] Server is listening on {SERVER}")
    while True:
       conn, addr = server.accept()
       thread = threading.Thread(target=handle_client, args=(conn, addr))
       thread.start()
       print(f"[ACTIVE CONNECTIONS] {threading.active_count() - 1}")

print("[STARTING] server is starting ...")
start()