On Fri, Oct 3, 2008 at 6:10 AM, Andreas Nilsson <[EMAIL PROTECTED]> wrote: > With that out of the way, on to todays subject: > I use list comprehensions and generator expressions a lot and lately I've > found myself writing a lot of code like this: > > for i in items if i.some_field == some_value: i.do_something() > > Naturally it won't work but it seems like a pretty straight-forward > extension to allow compressing simple loops to fit on one line. The > alternative, in my eyes, suggests there's something more happening than a > simple include-test which makes it harder to comprehend. > > for i in items: > if i.some_field == some_value: i.do_something() > > One possibility of course is to use a generator-expression but that makes it > look like there are two for loops and it feels like a waste setting up a > generator just for filtering. > > for i in (i for i in items if some_field == some_value): > i.do_something() > > Stupid idea? Am I missing some obviously better way of achieving the same > result?
It's been discussed already. Essentially, all that saves is a newline or two, which, as I think has been generally accepted, tends to hurt readability. Here's the full discussion: http://www.mail-archive.com/python-dev@python.org/msg29276.html Other than that, welcome! -- Cheers, Leif _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
