[Twisted-Python] Adding callback to a Deferred that's already running?
sflist at ihonk.com
Thu Aug 26 01:12:51 MDT 2004
> This wasn't spectacularly obvious to me the first time either, but I
> think it's covered somewhere in the deferred execution howto; in your
> callback/errback, return a new deferred and the processing of the
> deferred chain will pause until that new deferred fires. Here's an
> example of code that does that...
Thanks for your reply, Mike! I don't thoroughly understand your code yet, but
I'm workin' on it. One of the things I don't like about the examples is that
they don't demonstrate a conditional addition of a callback.
One of the things I did try was returning a new Deferred from step2(), but it
didn't work, and I'm not sure why. I'm checking out defer.py now to try to
figure out how it works...
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