In <[EMAIL PROTECTED]>, Justin Azoff
wrote:
> Rhamphoryncus wrote:
> [snip interesting istep function]
>
>> Would anybody else find this useful? Maybe worth adding it to itertool?
>
> yeah, but why on earth did you make it so complicated?
>
> def istep(iterable, step):
> a=[]
> for x in iterable:
> if len(a) >= step:
> yield a
> a=[]
> a.append(x)
> if a:
> yield a
This is not as "lazy" as Rhamphoryncus' function anymore. Lets say the
`iterable` is a stream of events, then your function always needs to
"receive" `step` events before the caller can do anything else with the
events. In Rhamphoryncus' function the caller can react on the event as
soon as it's "delivered" by `iterable`.
Ciao,
Marc 'BlackJack' Rintsch
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