Sending and receiving multiple objects in pygame with sockets and pickle

Question

I'm making multiplayer game (2 hosts, local network) in pygame. I'm newbie in socket programming and can't handle problem with sending and receiving multiple data. I've got this pretty nice code from this: Python Online Game Tutorial - Sending Objects - techwithtim.net but it only shows how to send one object to both players. I want to modify this by adding mobs and shooting mechanic, but I can't figure out how to send Mob object to each player and update this mob in real time.

I've modified server script like this:

server.py

objects = [Player(200,500-50, 50,50, (0,255,0)), 
           Player(400,500-50, 50,50, (0,0,255)), 
           Mob(200,-1,30,40,(255,0,0))]

def threaded_client(conn, player):
    conn.send(pickle.dumps(objects[player]))

    reply = []
    while True:
        try:
            data = pickle.loads(conn.recv(2048))
            objects[player] = data
            if not data:
                print("Disconnected")
                break
            else:
                if player == 1:
                    reply = objects[0], objects[2]
                    reply = list(reply)
                else:
                    reply = objects[1], objects[2]
                    reply = list(reply)


                print("Received: ", data)
                print("Sending : ", reply)

            conn.sendall(pickle.dumps(reply))
        except:
            break

    print("Lost connection")
    conn.close()

and client side looks almost the same as original (only redrawWindow() is changed) client.py

def redrawWindow(win,player, player2):
    win.fill((255,255,255))
    player.draw(win)

    player2[0].draw(win)
    player2[1].draw(win)

    pygame.display.update()


def main():
    run = True
    n = Network()

    p = n.getP()
    clock = pygame.time.Clock()
    while run:
        clock.tick(60)
        p2 = n.send(p)
        print(p2)

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                run = False
                pygame.quit()

        p.move()
        redrawWindow(win, p, p2)
        pygame.display.flip()

Mob class - mob.py:

import pygame
import random
WIDTH = 500
HEIGHT = 600
class Mob():
    def __init__(self, x, y, width, height, color):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.color = color
        self.rect = (x, y, width, height)
        self.vel = 1

    def draw(self, win):
        pygame.draw.rect(win, self.color, self.rect)
        self.move()

    def move(self):
        self.y += self.vel
        self.update()

    def update(self):
        self.rect = (self.x, self.y, self.width, self.height)

With my modifications of code, mob is sent to each player, but this mob doesn't change its position. If I draw mob only in client side, it works OK but position of mob is different for both players. How could I make this work?