In article <513a26fa$0$30001$c3e8da3$54964...@news.astraweb.com>, Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info> wrote:
> On Wed, 06 Mar 2013 22:20:11 -0500, Roy Smith wrote: > > > I stumbled upon an interesting bit of trivia concerning lists and list > > comprehensions today. > > > > We use mongoengine as a database model layer. A mongoengine query > > returns an iterable object called a QuerySet. The "obvious" way to > > create a list of the query results would be: > > > > my_objects = list(my_query_set) > > > > and, indeed, that works. But, then I found this code: > > > > my_objects = [obj for obj in my_query_set] > > > > which seemed a bit silly. I called over the guy who wrote it and asked > > him why he didn't just write it using list(). I was astounded when it > > turned out there's a good reason! > > And why was that not documented in the code? > > I hope you took this fellow out and gave him a damned good thrashing! Nah. I'm a pacifist. Besides, he's my boss :-) -- http://mail.python.org/mailman/listinfo/python-list
