On Sat, 2008-05-03 at 21:37 +0000, Ivan Illarionov wrote: > On Sat, 03 May 2008 20:44:19 +0200, Szabolcs Horvát wrote: > > > Arnaud Delobelle wrote: > >> > >> sum() works for any sequence of objects with an __add__ method, not > >> just floats! Your algorithm is specific to floats. > > > > This occurred to me also, but then I tried > > > > sum(['abc', 'efg'], '') > > Interesting, I always thought that sum is like shortcut of > reduce(operator.add, ...), but I was mistaken. > > reduce() is more forgiving: > reduce(operator.add, ['abc', 'efg'], '' ) # it works > 'abcefg'
Hm, it works for lists: sum(([1], [2]), []) [1, 2] However I find the seccond argument hack ugly. Does the sum way have any performance advantages over the reduce way? -- Best Regards, Med Venlig Hilsen, Thomas -- http://mail.python.org/mailman/listinfo/python-list
