doc/historic/2003/pycon/deferex/deferex-chaining.py

   1 from twisted.internet import reactor, defer
   2
   3 A = defer.Deferred()
   4 def X(result):
   5     B = defer.Deferred()
   6     reactor.callLater(2, B.callback, result)
   7     return B
   8 def Y(result):
   9     print result
  10 A.addCallback(X)
  11 A.addCallback(Y)
  12 A.callback("hello world")
  13 reactor.run()