On Mon, Dec 05, 2016 at 05:46:32PM +0100, Marc Mezzarobba wrote: > Nils Bruin wrote: > > Yes, there is one in python in general. With > > > > sort(<list>, key=str) > > > > you'll be able to sort lists of all kinds of stuff. > > Well, sort(key=str) and sort(key=id) certainly help in many cases, but > they clearly don't suffice in general. Neither is able to use an order > defined by the common class when it exists, and key=str may be very > costly.
Indeed, id() alone can not decide when two objects are equal, so there should be at least one equality test before using id(). However, mixing the internal order of a common class when it exists together with id() would loose the transitivity property, so i guess those two kind of tests should remain separate. Ciao, Thierry > -- > Marc > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/sage-devel. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
