python proxy portforwarding edit liveoverflow

import socket
import os
from threading import Thread
import parser_part9 as parser#ขาดอันนี้อะรอให้ถึงบ้านก่อนนะจะ
import importlib
import socket
iphamachi="เปลียนเป็นip hamachi"
localserverip="เปลียนเป็น ipserverนะจะ"
# Part 9
# Developing a TCP Network Proxy - Pwn Adventure 3
# https://www.youtube.com/watch?v=iApNzWZG-10

class Proxy2Server(Thread):

    def __init__(self, host, port):
        super(Proxy2Server, self).__init__()
        self.game = None # game client socket not known yet
        self.port = port
        self.host = host
        self.server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.server.connect((host, port))

    # run in thread
    def run(self):
        while True:
            data = self.server.recv(8)
            if data:
                #print "[{}] <- {}".format(self.port, data[:100].encode('hex'))
                try:
                    importlib.reload(parser)
                    parser.parse(data, self.port, 'server')
                except Exception as e:
                    print('server[{}]'.format(self.port)), e
                # forward to client
                self.game.sendall(data)

class Game2Proxy(Thread):

    def __init__(self, host, port):
        super(Game2Proxy, self).__init__()
        self.server = None # real server socket not known yet
        self.port = port
        self.host = host
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        sock.bind((host, port))
        sock.listen(1)
        # waiting for a connection
        self.game, addr = sock.accept()
class Proxy(Thread):

    def __init__(self, from_host, to_host, from_port, to_port):
        super(Proxy, self).__init__()
        self.from_host = from_host
        self.to_host = to_host
        self.from_port = from_port
        self.to_port = to_port
        self.running = False

    def run(self):
        while True:
            print("[proxy({})]) setting up".format(self.from_port))
            self.g2p = Game2Proxy(self.from_host, self.from_port) # waiting for a client
            self.p2s = Proxy2Server(self.to_host, self.to_port)
            print("[proxy({})]) connection established".format(self.to_port))
            self.g2p.server = self.p2s.server
            self.p2s.game = self.g2p.game
            self.running = True

            self.g2p.start()
            self.p2s.start()

servers=[]
_upnp_server = Proxy(iphamachi, localserverip, 8000,8000)
_upnp_server.start()
servers.append(_upnp_server)


while True:
    try:
        cmd = input('$ ')
        if cmd[:4] == 'quit':
            os._exit(0)
        if cmd[:7] == "injectc":
            for server in servers:
                if server.running:
                    server.g2p.client.sendall(cmd[8:])
            pass
        if cmd[:7] == "injects":
            for server in servers:
                if server.running:
                    server.p2s.server.sendall(cmd[8:])
            pass
    except Exception as e:
        print(e)