NaN, Null, and Sorting

Chris Angelico rosuav at
Mon Jan 16 05:57:59 EST 2012

On Mon, Jan 16, 2012 at 9:22 PM, Eelco <hoogendoorn.eelco at> wrote:
> What you want, conceptually, is a
> sorted list of the sortable entries, and a seperate list of the
> unsorted entries. Translated into code, the most pure solution would
> be to filter out the nanas/nulls in their own list first, and then
> sort the rest. If the interface demands it, you can concatenate the
> lists afterwards, but probably it is most convenient to keep them in
> seperate lists.

So... you split it into two lists, sort the two lists (one of which
can't be sorted), and then concatenate them. Sounds like the quicksort


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