server.py

import socket
import sys

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))
        
   
def bind_socket():
    try:
        global host
        global port
        global s
        print(f"binding the port {port}")
        s.bind((host,port))
        s.listen(5)
    except socket.error as msg:
        print("socket creation error"+str(msg))
        bind_socket()


def socket_accept():
    con,address=s.accept()
    print(f"connection has benn established!{address[0]}with port {address[1]}")
    send_command(con)
    con.close()
    
    

def send_command(conn):
    while True:
        cmd=input()
        if cmd == 'quit':
            conn.close()
            s.close() 
            sys.exit()
        if len(str.encode(cmd)) > 0:
            conn.send(str.encode(cmd))
            client_response=str(conn.recv(1024),"utf-8")
            print(client_response,end="")
            
def main():
    create_socket()
    bind_socket()
    socket_accept()
    
main()