mabshoff wrote: > > > On May 1, 7:38 am, kcrisman <kcris...@gmail.com> wrote: >>>> sage: P>x^2+x >>>> Expected: >>>> True >>>> Got: >>>> False >> Yes, I just added that test to show that Primes() has comparison. I >> was a little surprised to see the result, but it passed testing, so... >> >> If someone posts a ticket with a suggested fix that makes Primes() >> greater than everything, I can try to implement it - I but for now I >> just wanted to make sure it was clear Primes() did compare to weird >> things and not throw an error. > > Well, what I wrote was nonsense. __cmp__ always returns -1 unless both > are Primes(), i.e what is greater depends on what is left and right > respectively. I don't care too much about that now, but if someone has > a better suggestion I am interested in hearing it.
In the future of python, things that don't have a sensible order throw a TypeError when comparing: http://docs.python.org/3.0/whatsnew/3.0.html#ordering-comparisons Why don't we just throw an error? Jason -- Jason Grout --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
