Fredrik Lundh wrote: > Steven Bethard wrote: >> Raymond Hettinger wrote: >>> >>> return max(lst) >> >> Very clever! Thanks! > > too clever. boolean > None isn't guaranteed by the language > specification: > > http://docs.python.org/ref/comparisons.html > > "... objects of different types always compare unequal, and are > ordered consistently but arbitrarily. /.../ In the future, the > comparison rules for objects of different types are likely to > change. ..."
Then maybe like this: >>> def max_of_two_with_None_less_than_any_other_object(e1, e2): ... if e1 == None: ... return e2 ... elif e2 == None: ... return e1 ... else: ... return max(e1, e2) >>> reduce(max_of_two_with_None_less_than_any_other_object, lst) Mick. -- http://mail.python.org/mailman/listinfo/python-list
