Function to Add List Elements?

[Chris Rebert]

On Wed, Oct 22, 2008 at 12:59 PM, Henry Chang <goldspin at gmail.com> wrote:
> This seems like a simple problem, but I can't find a simple solution.
>
> Suppose I have two lists of integers.
>
> List A = [A1, A2, A3]
> List B = [B1, B2, B3]
>
> I just simply want a new list, such as:
>
> List C = [C1, C2, C3]
>
> where:
>
> C1 = A1 + B1
> C2 = A2 + B2
> C3 = A3 + B3
>
> Is there a simple function to do this?

A one-liner in fact:

summed = [sum(pair) for pair in zip(listA, listB)]

Explanation: pairs up the elements of listA and listB, sums each pair,
constructs a list of the sums.

Cheers,
Chris
-- 
Follow the path of the Iguana...
http://rebertia.com

>
> Thanks so much?
>
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