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Viewing changes to vendor/Twisted-10.0.0/doc/historic/2003/pycon/deferex/deferex-complex-failure.py

  • Committer: Jesse Andrews
  • Date: 2010-05-28 06:05:26 UTC
  • Revision ID: git-v1:bf6e6e718cdc7488e2da87b21e258ccc065fe499
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vendor/Twisted-10.0.0/doc/historic/2003/pycon/deferex/deferex-complex-failure.py
 
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from deferexex import adder
 
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class MyExc(Exception):
 
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    "A sample exception"
 
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class MyObj:
 
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    def blowUp(self, result):
 
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        self.x = result
 
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        raise MyExc("I can't go on!")
 
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    def trapIt(self, failure):
 
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        failure.trap(MyExc)
 
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        print 'error (', failure.getErrorMessage(), '). x was:', self.x
 
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        return self.x
 
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    def onSuccess(self, result):
 
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        print result + 3
 
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    def whenTrapped(eslf, result):
 
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        print 'Finally, result was', result
 
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    def run(self, o):
 
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        o.callRemote("add", 1, 2).addCallback(
 
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            self.blowUp).addCallback(
 
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            self.onSuccess).addErrback(
 
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            self.trapIt).addCallback(
 
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            self.whenTrapped)
 
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MyObj().run(adder)