John Neumann the ArrantSquid looks at Python List Comprehension which is is basically a way of creating a new list based off of an existing list and a subset of traits. Check out the article for Python List Comprehension here.

John Neumann Writes: So it’s been a while since I updated anything on here. Part of that is because I don’t have the time anymore. The reason I don’t have the time is because I am now gainfully employed as a Technical Director at Reel FX. It’s pretty awesome and rewarding. Now all I do is write tools all day for the artists. Onwards. So Python is an amazingly awesome language. One of the reasons it’s so awesome is because you can do really hard things really easily in it. One of those things are list comprehensions. A list comprehension is basically a way of creating a new list based off of another list and a subset of qualities you’re looking for.