A simple client-server communication script using Python sockets.

• server.py: Handles incoming connections and broadcasts messages to all connected clients.
• client.py: Connects to the server, sends messages, and allows the user to disconnect.

1. Run server.py to start the server.
2. Run multiple instances of client.py to connect to the server.
3. Enter messages in the client instances to send them to the server and other connected clients.

• The server listens on a specified port (default: 5050).
• Clients connect to the server's IP address and port.
• Type !DISCONNECT to disconnect a client.
• Type 'q' in the client to quit and disconnect.

• Threading is used to handle multiple client connections simultaneously.
• The communication is based on a fixed message header length.