Mark Dickinson wrote:
> Sorting tuples, where the second item in the tuple should
> have the opposite ordering to the first is going to be
> a bit of a pain. Or even worse, where the ordering of the
> second item depends on the value of the first item in the
> tuple.
This is like some examples where I had used cmp,
but if I understand correctly I think it is not a problem.
> For example, suppose that (for whatever contrived reason)
> you're representing integers in (sign, magnitude) format
> by tuples (s, i), where s = 0 or 1 (0 for positive, 1 for
> negative) and i is a string representing the absolute
> value of the integer. So
Does this do it? ::
key= lambda x: (-x[1],int(x2))
Here I am depending on the lexicographic sorting of tuples.
Without that there would be real trouble.
Cheers,
Alan Isaac
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