Argh, sorry folks. Hit the wrong list. :(
On Tue, Jan 29, 2013 at 12:55 AM, Chris Angelico <ros...@gmail.com> wrote: > On Tue, Jan 29, 2013 at 12:33 AM, Wolfgang Maier > <wolfgang.ma...@biologie.uni-freiburg.de> wrote: >> Why not extend this filtering by allowing a while statement in addition to >> if, as in: >> >> [n for n in range(1,1000) while n < 400] > > The time machine strikes again! Check out itertools.takewhile - it can > do pretty much that: > > import itertools > [n for n in itertools.takewhile(lambda n: n<400, range(1,1000))] > > It's not quite list comp notation, but it works. > >>>> [n for n in itertools.takewhile(lambda n: n<40, range(1,100))] > [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, > 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, > 37, 38, 39] > > ChrisA -- http://mail.python.org/mailman/listinfo/python-list
