import os
from twisted.spread import pb
from twisted.internet import reactor

class PBDirLister(pb.Root):
    def remote_ls(self, directory):
        try:
            return os.listdir(directory)
        except OSError:
            return []

    def remote_ls_boom(self, directory):
        return os.listdir(directory)

if __name__ == '__main__':
    reactor.listenTCP(9876, pb.PBServerFactory(PBDirLister()))
    reactor.run()