import socket
import threading
import socketserver

class ThreadedTCPRequestHandler(socketserver.BaseRequestHandler):

    def handle(self):
        data = self.request.recv(1024)
        cur_thread = threading.current_thread()
        response = "{}: {}".format(cur_thread.name, data)
        self.request.sendall(b'worked')

class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
    pass

def client(ip, port, message):
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.connect((ip, port))
    try:
        sock.sendall(message)
        response = sock.recv(1024)
        print("Received: {}".format(response))
    finally:
        sock.close()

if __name__ == "__main__":
    # Port 0 means to select an arbitrary unused port
    HOST, PORT = "192.168.2.129", 9000

    server = ThreadedTCPServer((HOST, PORT), ThreadedTCPRequestHandler)
    ip, port = server.server_address

    # Start a thread with the server -- that thread will then start one
    # more thread for each request
    server_thread = threading.Thread(target=server.serve_forever)
    # Exit the server thread when the main thread terminates
    server_thread.daemon = True
    server_thread.start()
    print("Server loop running in thread:", server_thread.name)
    ip = '12.34.56.789'
    print(ip, port)

    client(ip, port, b'Hello World 1')
    client(ip, port, b'Hello World 2')
    client(ip, port, b'Hello World 3')

    server.shutdown()

Traceback (most recent call last):
  File "C:UsersDr.FrevDesktopserverTest.py", line 43, in <module>
    client(ip, port, b'Hello World 1')
  File "C:UsersDr.FrevDesktopserverTest.py", line 18, in client
    sock.connect((ip, port))
socket.error: [Errno 10061] No connection could be made because the target machine
actively refused it