$ python
Python 2.5.2 (r252:60911, Apr 21 2008, 11:17:30) 
[GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from twisted.spread import pb
>>> from twisted.internet import reactor
>>> factory = pb.PBClientFactory()
>>> server = None
>>> def gotServer(serv):
...     global server
...     server = serv
... 
>>> connection = reactor.connectTCP('localhost', 8000, factory)
>>> reactor.callLater( 4, reactor.crash )
<twisted.internet.base.DelayedCall instance at 0xac5638>
>>> reactor.run()
>>> d = factory.getRootObject()
>>> d.addCallback(gotServer)
<Deferred at 0xb1f440  current result: None>
>>> reactor.iterate()
>>> server.callRemote('GameStartRequest')
<Deferred at 0xac5638>
>>> reactor.iterate()
>>> up, right, down, left = 0,1,2,3
>>> server.callRemote('CharactorMoveRequest', up)
<Deferred at 0xb1f4d0>
>>> reactor.iterate()
>>> server.callRemote('CharactorMoveRequest', right)
<Deferred at 0xac5638>
>>> reactor.iterate()
>>> server.callRemote('CharactorMoveRequest', down)
<Deferred at 0xb1f4d0>
>>> reactor.iterate()
>>> server.callRemote('CharactorMoveRequest', left)
<Deferred at 0xac5638>
>>> reactor.iterate()