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benchmarks / lib / twisted-trunk / doc / core / howto / listings / pb / copy2_classes.py

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#!/usr/bin/env python

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

from twisted.spread import pb

class FrogPond:
    def __init__(self, numFrogs, numToads):
        self.numFrogs = numFrogs
        self.numToads = numToads
    def count(self):
        return self.numFrogs + self.numToads

class SenderPond(FrogPond, pb.Copyable):
    def getStateToCopy(self):
        d = self.__dict__.copy()
        d['frogsAndToads'] = d['numFrogs'] + d['numToads']
        del d['numFrogs']
        del d['numToads']
        return d

class ReceiverPond(pb.RemoteCopy):
    def setCopyableState(self, state):
        self.__dict__ = state
    def count(self):
        return self.frogsAndToads

pb.setUnjellyableForClass(SenderPond, ReceiverPond)