TCP服务器/客户端：[Errno 32]管道损坏

我正在尝试使用python为一个小游戏创建一个简单的多人游戏模式 . 我想要做的是分享连接到服务器的每个玩家的位置 . 现在，虽然我很困难甚至有一个客户端与服务器通信，使用套接字模块和json文件（虽然似乎没有引起问题） .

The error I get and when:

一旦我尝试通过客户端第二次发送一些东西，我得到“[Errno 32] Broken pipe”错误 . 根据一些谷歌搜索，当连接关闭时会发生这种情况 . 不幸的是，我没有看到它被关闭的地方 .

目前我的代码非常多：http://thomasfischer.biz/python-simple-json-tcp-server-and-client/ . 自从我立刻遇到这个问题后，我没有太大变化 .

Server Client：

import SocketServer
import json

class MyTCPServer(SocketServer.ThreadingTCPServer):
    allow_reuse_address = True

class MyTCPServerHandler(SocketServer.StreamRequestHandler):
    def handle(self):
        try:
            data = json.loads(self.request.recv(1024).strip())
            print data
        except Exception, e:
            print "Exception wile receiving message: ", e

server = MyTCPServer(('127.0.0.1', 13373), MyTCPServerHandler)
server.serve_forever()

玩家客户：

import SocketServer
import json

def __init__(self):
    self.S = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    self.S.connect(('127.0.0.1', 13373))

*lots of game related code*

pos = {'id':id, 'pos': (x, y, z)}
self.S.send(json.dumps(pos))
self.position = (x, y, z)

if __name__ == '__main__':
    main() #to keep the game running and updating

错误：

File "/usr/local/lib/python2.7/dist-packages/pyglet/app/__init__.py", line 123, in run
    event_loop.run()
  File "/usr/local/lib/python2.7/dist-packages/pyglet/app/base.py", line 135, in run
    self._run_estimated()
  File "/usr/local/lib/python2.7/dist-packages/pyglet/app/base.py", line 164, in _run_estimated
    timeout = self.idle()
  File "/usr/local/lib/python2.7/dist-packages/pyglet/app/base.py", line 273, in idle
    redraw_all = self.clock.call_scheduled_functions(dt)
  File "/usr/local/lib/python2.7/dist-packages/pyglet/clock.py", line 309, in call_scheduled_functions
    item.func(ts - item.last_ts, *item.args, **item.kwargs)
  File "/home/tim/tools/Pyglet/PlayerClient.py", line 609, in update
    self._update(dt / m)
  File "/home/tim/tools/Pyglet/PlayerClient.py", line 641, in _update
    self.S.send(json.dumps(pos))
socket.error: [Errno 32] Broken pipe