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the 2nd chained deferred receives None as a result
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#!/usr/bin/env python | |
# http://stackoverflow.com/q/13634785 | |
from twisted.internet import defer | |
class Baz: | |
def __init__(self): | |
self.resultD = defer.Deferred() | |
def fooMe(self, name): | |
d = defer.Deferred() | |
self.resultD.addCallback(d.callback) # or resultD.chainDeferred(d) | |
@d.addCallback | |
def f(result): | |
print "fooMe(%s) got: %s" % (name, result,) | |
assert result is not None | |
return result | |
return d | |
defer.Deferred.debug = True # get more info in traceback | |
b = Baz() | |
b.fooMe("one") | |
b.fooMe("two") | |
b.resultD.callback("result") |
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