Antoon Pardon wrote: > On 2006-09-27, George Sakkis <[EMAIL PROTECTED]> wrote: >> Antoon Pardon wrote: >> >>> What bothers me a bit about the rejection of PEP 326 is that one of the >>> reasons stated is: >>> >>> http://mail.python.org/pipermail/python-dev/2004-January/042306.html >>> >>> - it is easily implemented when you really need it >>> >>> Well I thought it would simplify some things for me, so I tried an >>> implementation and then found that some of the things that I would >>> want to do with it wont work. So the "is easily implemented" bit >>> seems not to be correct. >> >> IIRC, the PEP proposed the Smallest and Largest singletons with the >> sole purpose of being used in comparisons. No numeric behavior was >> implied, i.e. Smallest and Largest are not negative and positive >> infinity in the math sense of the word. > > That is true. > >> So I guess the "easily implemented" refers to this case alone. > > This doesn't follow. Take the example were I got stuck. > >>>> lst = range(10) >>>> lst[:Top]
FWIW, this works with 2.5 and the __index__ slot: >>> class Top(object): ... def __index__(self): ... return sys.maxint ... >>> a=range(5) >>> a[:Top()] [0, 1, 2, 3, 4] >>> Georg -- http://mail.python.org/mailman/listinfo/python-list
