Communication between Python and Java

I'm 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 sending a message from Java to Python the python server receives, but the opposite does not happen. Apparently the server sends the bytes but the client waits infinitely, indicating that nothing has been received.

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();
        }
    }

}