In article <mailman.2090.1261159213.2873.python-l...@python.org>, Steve Holden <st...@holdenweb.com> wrote: >Julian wrote: >> >> But: >> >> - none classification: return an exception or None? I think None is >> better, hence its not an exception that there is no classification but >> a defined state. What do you think? >> - many classifications: what to do? retun a sequence of strings? raise >> an exception and implement another method wich returns than the >> classifications? what should I do here? > >Always return a list or tuple. For no classifications it should be >empty, for one classification it should have one element, ... , for N >classifications it should have N elements.
Why not a set? If you're only going list classifications, a tuple or list would be fine, but if you're going to probe classifications, you should use something that isn't O(N). -- Aahz (a...@pythoncraft.com) <*> http://www.pythoncraft.com/ Weinberg's Second Law: If builders built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization. -- http://mail.python.org/mailman/listinfo/python-list
