Yeah, you could do that, but it was quite a revelation when I
discovered itertools, and I'm just trying to share the love.
---
Richard "Roadie Rich" Lovely
Part of the JNP|UK Famille
www.theJNP.com
(Sent from my iPod - please allow me a few typos: it's a very small
keyboard)
On 14 Dec 2008, at 14:46, "Paul McGuire" <[email protected]> wrote:
Even simpler than Rich Lovely's:
newlist = [a+b for a,b in itertools.izip(l1[:-1], l1[1:])]
is to just use the built-in zip:
newlist = [a+b for a,b in zip(l1[:-1], l1[1:])]
since you can be sure that l1[:-1] and l1[1:] will always be the same
length, so there is no need for a fill value (one of the
enhancements you
get when using itertools.izip).
I often use zip this way when I need to get each item and its next-
highest
neighbor from a list.
-- Paul
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