From the book called "how to think like a computer scientist" in the version related to python programming: "In order to program, you need to have a mental model of how programs work. If you write a program that doesn't do what you expect, very often the problem is not in the program; it's in your mental model." -- Jacob Kruger Blind Biker Skype: BlindZA '...fate had broken his body, but not his spirit...' __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind