On Thu, May 7, 2009 at 9:32 AM, Carl Witty <carl.wi...@gmail.com> wrote: > > On Thu, May 7, 2009 at 7:01 AM, kcrisman <kcris...@gmail.com> wrote: >> I am hoping to help the push to 75% by adding some doctests to some of >> the plotting primitives. But for some reason, the following always >> occurs: >> >> sage: G = some graphics object >> sage: G == loads(dumps(G)) >> False >> >> Nonetheless, no matter how hard I try, I cannot actually find a >> difference between G and loads(dumps(G)) when I view both of them, >> look at xmin(), options(), etc. Why aren't they ==? > > Because graphics objects don't implement equality (there are no __eq__ > or __cmp__ methods defined), so the default implementation is used, > which is "is" (object identity, pointer equality). > > Carl
Ergo, you should implement __cmp__. William --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
