On Fri, Mar 5, 2010 at 1:51 PM, Terry Reedy <tjre...@udel.edu> wrote: > On 3/5/2010 1:54 PM, Jean-Michel Pichavant wrote: >> Steven D'Aprano wrote: > >> Despite there are good reasons for bool to be int, the newcomer 'wtf' >> reaction at first glance is legitimate. >> Starting python from scratch, booleans would have not been a subclass of >> int (just guessing though), 'cause it makes no sense from a design POV. > > You are just guessing. I would argue for what we have. An example of its > usefulness: > >>>> scores =[True, False, True, True, False] >>>> score = sum(scores) >>>> score > 3 > > Bools are also usefully used as sequence indexes.
Arguably, these sorts of uses only require bool to be /convertible/ to int, not to necessarily be a /subclass/ of int. Cheers, Chris -- http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
