On Jul 29, 4:11 pm, Erik Max Francis <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] wrote:
> > for x, y in zip(a, a[1:]):
> > frob(x, y)
>
> What you meant was this:
>
> >>> [(x, y) for x, y in zip(a[::2], a[1::2])]
> [(0, 1), (2, 3), (4, 5), (6, 7), (8, 9)]
>
> but this creates three sublists through slicing and zip. The use of
> islice and izip is better, particularly if the list that's being
> iterated over is large.
The lists I use it with are generally pretty small (a few
thousand items at most) so I decided to go with simple rather than
clever. That said, I use it enough that it should become its own
function, at which point I'll probably grab something from this
thread.
Cheers,
Geoff G-T
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