[Twisted-Python] tee method in twisted.internet.defer.py ?

[Kevin Horn]

On Tue, Nov 17, 2009 at 10:27 AM, Terry Jones <terry at jon.es> wrote:

> >>>>> "JP" == exarkun  <exarkun at twistedmatrix.com> writes:
>
> I don't need it committed, I was just wondering why something like that
> doesn't already exist. Re patterns: it would be great to have a series of
> diagrams illustrating situations one might want to deal with and showing
> how these can be done with Deferred code. Your Epsilon class could be shown
> as a hub with new listeners arriving, ready for the triggering of the
> callback. The tee diagram would show a T (or multiple Ts on the same
> callback chain) in the obvious way. add{Callback,Errback} is like a normal
> UNIX pipe and, stretching things a little, chainDeferred reminds me a bit
> of UNIX exec (though with real differences).
>
> There's a PyCon talk in there somewhere. Like Patterns of Asynchronous Flow
> of Control using Twisted Deferreds. It often feels to me like there's a
> lurking taxonomy of Deferred use cases or building blocks that's just
> waiting for someone to come along and make really clear to the world. I'd
> really love to do it, but I just don't have the time.
>
>
I would so love to see that talk...or read that paper...or whatever.

Kevin Horn
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