[Python-ideas] If I had the time machine for comparisons

On Wed, Oct 12, 2011 at 11:18 PM, Guido van Rossum <guido@python.org> wrote:

(I'm also -1 on adding ordering comparisons; there's little disagreement on that issue.)

If I had a time machine, I would allow comparisons to return "unordered" as well. Right now, objects are comparable or not based strictly on the type, even though comparison is inherently about the values. I think that range(3) < range(10) is obviously true, even though it isn't clear whether or not range(3, 15, 2) < range(7, -8, -1) is true. Here we err by not allowing the first comparison; other objects (like dicts) we err by forcing an arbitrary ordering. -jJ