from defer import Deferred
__author__ = 'cqh'
def myCallback(result):
print result
def myErrback(err):
print err
d=Deferred()
d.add_callback(myCallback)
#d.add_errback(myErrback)
d.callback("Trigger callback.")
from defer import Deferred
__author__ = 'cqh'
def callback1(result):
print "Callback 1 said:",result
return result
def callback2(result):
print "Callback2 said:",result
def callback3(result):
raise Exception("Callback 3")
def errback1(failure):
print "Errback 1 had an an error on ,",failure
return failure
def errback2(failure):
raise Exception("Errback 2")
def errback3(failure):
print "Errback3 took care of ",failure
return "Everything is fine now."
d=Deferred()
d.add_callback(callback1)
d.add_callback(callback2)
d.add_callbacks(callback3,errback1)
d.add_errback(errback3)
d.callback("Test")