将Java数据包发送到Python服务器？

import java.io.*;
import java.net.*;

public class testclient {
    public static void main(String[] args) throws IOException {
        DatagramSocket socket = new DatagramSocket();

        byte[] buf = new byte[256];
        InetAddress address = InetAddress.getLocalHost();
        DatagramPacket packet = new DatagramPacket(buf, buf.length, address, Integer.parseInt(args[0]));

        System.out.println(\"Sending...\");
        socket.send(packet);

        System.out.println(\"Receiving...\");
        packet = new DatagramPacket(buf, buf.length);
        socket.receive(packet);

        String received = new String(packet.getData(), 0, packet.getLength());
        System.out.println(received);
        System.out.println(\"Done!\");

        socket.close();
    }
}

from sys import *
from socket import *

host = gethostname()
port = int(argv[1])
address = (host, port)

print \"Binding...\"
sock = socket(AF_INET, SOCK_DGRAM)
sock.bind(address)

print \"Receiving...\"
data, client = sock.recvfrom(256)

print \"Sending to\", client
sock.sendto(\"Hi\", client)

print \"Closing...\"
sock.close()

print \"Done!\"