client.py

# Import required modules
import socket
import threading

HOST = '127.0.0.1'
PORT = 1234

def listen_for_messages_from_server(client):
    while True:
        message = client.recv(2048).decode('utf-8')
        if message != '':
            username = message.split("->")[0]
            content = message.split("->")[1]
            print(f"{username} -> {content}")
        else:
            print('Message received from clinet is empty.')

def send_message_to_server(client):
    while True:
        message = input("Message: ")

        if message != '':
            client.sendall(message.encode())
        else:
            print("Empty message")
            exit(0)

def communicate_to_server(client):
    username = input('Enter username: ')

    if username != '':
        client.sendall(username.encode())
    else:
        print('Username cannot be empty.')
        exit(0)

    threading.Thread(target=listen_for_messages_from_server, args=(client,)).start()
    send_message_to_server(client)

# Main function
def main():
    client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    # Connect to the server
    try:
        client.connect((HOST, PORT))
        print("Successfully connected to server.")
    except:
        print(f"Unable to connect to server {HOST} {PORT}.")

    communicate_to_server(client)

if __name__ == "__main__":
    main()