proposed PEP: iterator splicing

Kay Schluehr kay.schluehr at
Sun Apr 15 16:02:22 CEST 2007

On Apr 15, 10:23 am, Anton Vredegoor <anton.vredeg... at>

> I'm currently also fascinated by the new generator possibilities, for
> example sending back a value to the generator by making yield return a
> value. What I would like to use it for is when I have a very long
> generator and I need just a slice of the values. That would mean running
> through a loop, discarding all the values until the generator is in the
> desired state and only then start doing something with the output.
> Instead I would like to directly set or 'wind' -like a file- a generator
> into some specific state.

Maybe you should start by developing a design pattern first and
publish it in the Cookbook. I have the fuzzy impression that the idea
you are after, requires more powerfull control structures such as
delimited continuations that are beyond ths scope of Pythons simple


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