Publisher review:List iterator with advance() and regress() script is an iterator for lists which allows one to advance or regress the position in the list. The basic iterator for a list doesn't allow one to skip forward (except with "continue"), or backward (at all), nor does it behave well if the list is modified while it is being traversed.
This script is NOT the be-all and end-all of improved iterators, but it gives a few ideas of how a better one might be created. &les a few ;
List iterator with advance() and regress() 1.0 is a Python script for Programming Methods and Algorithms scripts design by Michael Chermside.
It runs on following operating system: Windows / Linux / Mac OS / BSD / Solaris.
is an iterator for lists which allows one to advance or regress the position in the list.
Operating system:Windows / Linux / Mac OS / BSD / Solaris
List iterator with advance() and regress() 1.0 script details 
