Pygame network client

import pygame
import pygame_network

pygame.init()
# create connection
pygame_network.connect('localhost', 10000)
# connection overlay
host = pygame_network.client.Host()
# register new packet type
# it will call pygame_network.packets.PacketManager.register()
echo = pygame_network.register('echo', ('user', 'msg'))
name = raw_input('name: ')

# version 1:
while True:
    for e in pygame.event.get()
        if e.type == NETWORK and isinstance(e.packet, echo):
        user, msg = e.packet
        print '%s: %s' % (user, msg)
    host.send(echo('me', raw_input())

# version 2:
while True:
    for e in pygame.event.get()
        if e.type == NETWORK and e.packet_name == 'echo':
        print '%s: %s' % (e.packet.user, e.packet.msg)
    host.net_echo('me', raw_input())

# version 3:
class EchoClient(pygame_network.client.Receiver):
    def net_echo(self, packet_id, packet):
        print '%s: %s' % (packet.user, packet.msg)

    def read_input(self):
        self.host.net_echo('me', raw_input())

echo_client = EchoClient()
while True:
    echo_client.read_input()

# version 4: (no need to register new packet)
class EchoClient(pygame_network.SyncObject):
    sync_var = ('user', 'msg')
    def __init__(self):
        super(EchoClient, self).__init__()
        self.msg = 'test'
        self.user = 'me'

    def on_change(self):
        print '%s: %s' % (self.user, self.msg)

echo_client = EchoClient()
while True:
    echo_client.msg = raw_input()