Re: [Twisted-Python] How to chain deferred calls

Oct. 21, 2009

      Add another .addErrback() directly after adc1() - to handle that  
specific exception...

Kind regards,

Valeriy Pogrebitskiy
vpogrebi@verizon.net

On Oct 21, 2009, at 4:12 PM, vitaly@synapticvision.com wrote:
...
hi,
how can I chain in defer methods that could raise exception while
showing the exception that coming from method? I mean, if I'll do:
return (
  adc1().abc2().abc3().addErrback("Common2AllException")
)
than "Common2AllException" will be raised if abc1() raise Exception,
but I'd like to see the adc1() own exception (and not
"Common2AllException") ?
t = Test()
def abc1(self):
  if t.test() is None:
    raise Exception("Error11")
  else:
    return 1
def abc2(self):
  if t.test() is None:
    raise Exception("Error12")
  else:
    return 1
def abc3(self):
  if t.test() is None:
    raise Exception("Error13")
  else:
    return 1
Appreciate the help.
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