M.-A. Lemburg wrote:
On 2008-11-11 14:28, Antoine Pitrou wrote:
But why should "n/a" (or "missing", or "undefined") imply "smaller than
everything else"?
It's just a convention based on viewing None as "nothing" or the
empty set.
It would be possible to implement this convention in the
sort method, without making it a feature of comparisons
in general.
SQL does something similar -- while nulls sort before
everything else, the result of null < something is null,
not true.
--
Greg
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