convert loop to list comprehension

[Paul Rubin]

"MonkeeSage" <MonkeeSage at gmail.com> writes:
> Ps. I don't know if xrange is faster...I thought the difference was
> that range created a temporary variable holding a range object and
> xrange created an iterator?

There's no such thing as a "range object"; range creates a list, which
consumes O(n) memory where n is the number of elements.  xrange
creates an xrange object, which is a reusable iterator of sorts.