On Fri, Mar 13, 2009 at 5:30 PM, Peter Pearson <ppear...@nowhere.invalid> wrote:
> On Fri, 13 Mar 2009 18:56:30 +0100, Hrvoje Niksic <hnik...@xemacs.org> wrote:
> [snip]
>> a.sort(key=lambda (x, y): b[y - 1], reverse=True)
>
> Huh?  I had no idea one could do this:
>
>>>> def g( ( ( x, y ), z ) ):
> ...   return y
> ...
>>>> g( ((1,2),3) )
> 2
>
> What should I have read to learn that trick?

Don't bother. It's been excised in Python 3.0.

Cheers,
Chris

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