Hallo,I'm locking for an "iterator" type with not only the .next() method, but with a .previous(), .first() and .last() method, so that I can through it from the beginning or from the end, and in both directions, even alternately (for example two steps forward, one backward, two steps forward).
Any help will be wellcome! Ulrich -- Ulrich Goebel Paracelsusstr. 120, 53177 Bonn -- https://mail.python.org/mailman/listinfo/python-list
