On Tue, 08 Feb 2005 06:50:31 -0800 (PST), Jim <[EMAIL PROTECTED]> wrote: > Where did this type of structure come from: > > mat = ['a' for i in range(3)] ? > > This will produce a list of three elements but > I don't see reference for it in any of the books.
It's called a "List Comprehension". There's a good historical reason for the name, but you can be excused in not having looked under that name in the index. See <http://www.amk.ca/python/2.0/index.html#SECTION000600000000000000000> for details. They *should* be mentioned in most books, provided that it's vaguely recent and covers Python 2.0 or later. List comps have a cool new little sister, generator expressions - see <http://www.brunningonline.net/simon/blog/archives/001025.html>. -- Cheers, Simon B, [EMAIL PROTECTED], http://www.brunningonline.net/simon/blog/ -- http://mail.python.org/mailman/listinfo/python-list
