Communication between Python and Java

Question

I am trying to create a client server application where the server will be written in python and the client in Java. The problem is that when you send a message from Java to Python the python server gets it, but otherwise it doesn’t. Apparently the server sends the bytes but the client is waiting endlessly, indicating that it received nothing.

Python code

import socket

HOST = ''
PORT = 5000

udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM);
origem = (HOST,PORT)
udp.bind(origem)
msg, client = udp.recvfrom(1000)
print(client," - ",msg)
msg = "recebido"
dest = ('192.168.1.4',5000)
echo = "resposta"
udp.sendto(echo.encode('ascii'),dest)
udp.close()

Java code

import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.UnknownHostException;

public class Main {

    public static void main(String[] args) {

        String msg = "conectado";
        byte[] buffer = msg.getBytes();

        try {
            DatagramSocket socket = new DatagramSocket();
            //Enviando pacote
            DatagramPacket pacote = new DatagramPacket(buffer, buffer.length, InetAddress.getByName("192.168.1.4"), 5000);
            socket.send(pacote);

            //Receebendo pacote
            buffer = new byte[1000];
            pacote.setData(buffer);
            pacote.setLength(1000);
            socket.receive(pacote);

            //Convertendo arraybyte para String
            String conteudo = new String(buffer);
            System.out.println(conteudo);

        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

}