python socket:send and receive multi objects data

Question

i working on a multi player game project its strategy so i need to sending data for more that one object in the same time i created a client and server and that's worked for one object in the server and one object in the client but after i added the second object to the server i get a proplem not error just 3d objects position proplem and the controller for server objects get swapped for example the server have two objects that's i can get access to control it ["Cube"] and ["Server"] and the server have only one object that's called ["Client"] the proplem is when i run server then i controll my objects the engine swaping the objects in the client screen for example whe i click up arrow to move the ["Server"] object to up the ["Cube"] object who moves in the Client screen and when i click w key to move ["Cube"] object to up the ["Server"] object who moves in the client screen

that's my client code the ["client"] object are connected to it in the game engine

#------------Setup--------------#
from pickle import dumps, loads
from mathutils import Vector
from GameLogic import * 
import GameLogic as GameLogic
import bge
from socket import *
import socket
import pickle


cont = GameLogic.getCurrentController()
owner = cont.owner
#obj = cont.owner

if not owner['OneTime']:
  ServerIP = GameLogic.IP
  Serverport = 2052
  Clientname = ''
  ClientPort = 2053
  GameLogic.sClient = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)

  GameLogic.sClient.bind((Clientname,ClientPort))
  GameLogic.host = (ServerIP,Serverport)    
  GameLogic.sClient.setblocking(0)
  owner['OneTime'] = 1

PosYou = list(owner.worldPosition)

scene = getCurrentScene()
Cube = scene.objects["Cube"]
Server = scene.objects["Server"]


PosServer = [0,0,0]
PosCube = [0,0,0]
#------------RECEIVE/SEND--------------#    

Data = pickle.dumps((PosYou))

GameLogic.sClient.sendto(Data,GameLogic.host)

try:
    #thefucking proplem
    Data, SRIP = GameLogic.sClient.recvfrom(1024)



    UPData = pickle.loads(Data)
    PosServer = [UPData[0],UPData[1],UPData[2]]
    Server.worldPosition = PosServer 
    Data2, SRIP2 = GameLogic.sClient.recvfrom(1024)
    UPData2 = pickle.loads(Data2)

    PosCube = [UPData2[0],UPData2[1],UPData2[2]]
    Cube.worldPosition = PosCube 




except OSError:
    pass            
#---------------THE-END----------------#

that's my server code the ["Server"] object are connected to it in the game engine

#------------Setup--------------#
from GameLogic import * 
import GameLogic as GameLogic
import bge
from socket import *
import socket
import pickle

from pickle import *
cont = GameLogic.getCurrentController()
owner = cont.owner
#obj = cont.owner

if not owner['OneTime']:
  Host = "localhost"
  ServerPort = 2052
  GameLogic.sServer = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
  GameLogic.sServer.bind((Host,ServerPort)) 
  GameLogic.sServer.setblocking(0)
  owner['OneTime'] = True

PosYou = list(owner.worldPosition)

scene = getCurrentScene()
Client = scene.objects["Client"]
Cube = scene.objects["Cube"]
PosClient = [0,0,0]
PosCube = [0,0,0]
#------------RECEIVE/SEND--------------#

try:
    Data, CLIP = GameLogic.sServer.recvfrom(1024)
    UPData = pickle.loads(Data)
    PosClient = [UPData[0],UPData[1],UPData[2]]
    Client.worldPosition = PosClient 
    Data = pickle.dumps((PosYou))
    GameLogic.sServer.sendto(Data,CLIP)  


except OSError:
    pass
#---------------THE-END----------------#

the second object code the ["Cube"] object and that's connected two the object in the game engine and i get this error when i run it

File "secondob.py", line 18, in AttributeError: 'module' object has no attribute 'sServer'

#------------Setup--------------#
from GameLogic import * 
import GameLogic as GameLogic
import bge
from socket import *
import socket
import pickle

from pickle import *
cont2 = GameLogic.getCurrentController()
owner2 = cont2.owner
#obj = cont.owner





GameLogic.sServer.setblocking(0)
PosYou2 = list(owner2.worldPosition)


scene = getCurrentScene()
Client = scene.objects["Client"]
PosClient2 = [0,0,0]
#------------RECEIVE/SEND--------------#

try:

    Data2, CLIP2 = GameLogic.sServer.recvfrom(1024)


    UPData2 = pickle.loads(Data2)
    PosClient2 = [UPData2[0],UPData2[1],UPData2[2]]

    Client.worldPosition = PosClient2     
    Data2 = pickle.dumps((PosYou2))
    GameLogic.sServer.sendto(Data2,CLIP2)  
except OSError:
    pass
#---------------THE-END----------------#

Answer 1

The problem is global definitions in the beginning of the script. Move cont and owner definitions inside a function and you the function every time to get the reference or pass the reference around in functions. But you can't define them globally outside a function, otherwise 2 objects using the same script share the reference. Monster has written a good guide on this on blenderartists that should be a good read.