On Sat, Apr 2, 2016 at 1:34 AM, Marko Rauhamaa <ma...@pacujo.net> wrote: > Chris Angelico <ros...@gmail.com>: > >> *A range object is not an iterator.* > > We now have learned as much. > > However, doesn't that extra level of indirection seem like an odd > choice?
No; a range object is an entity in itself. You can test if something's within the range: >>> 5 in range(2,10) True >>> 5 in range(2,10,2) False You can ask how many numbers are in the range: >>> len(range(2,10,2)) 4 You can even ask what position a number would be in, if you index through the range: >>> range(3,100,3).index(57) 18 Iterators can't do any of this, except the 'in' check, which is destructive and O(N). ChrisA -- https://mail.python.org/mailman/listinfo/python-list
