Python async http "hello" server (Python 3.x)

gistfile1.py

# -*- coding: utf-8 -*-
import asyncore
import socket


ANSWER = 'HTTP/1.0 200 OK\r\n' + \
    'Content-Type: text/html; charset=utf-8\r\n' + \
    'Content-Length: 5\r\n' + \
    'Connection: close\r\n\r\n' + \
    'hello'


class HelloHandler(asyncore.dispatcher):

    def __init__(self, conn_sock):
        self.buffer = bytes(ANSWER, 'iso-8859-1')
        asyncore.dispatcher.__init__(self, conn_sock)

    def handle_read(self):
        self.recv(1024)

    def handle_write(self):
        if self.buffer:
            sent = self.send(self.buffer)
            self.buffer = self.buffer[sent:]
        else:
            self.close()


class HelloServer(asyncore.dispatcher):

    def __init__(self, host, port):
        asyncore.dispatcher.__init__(self)
        self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
        self.set_reuse_addr()
        self.bind((host, port))
        self.listen(5)

    def handle_accept(self):
        pair = self.accept()
        if pair is None:
            pass
        else:
            sock, addr = pair
            # New handler for each requst
            HelloHandler(sock)


if __name__ == '__main__':
    server = HelloServer('localhost', 8080)
    asyncore.loop()