On Fri, 19 Feb 2010 00:15:20 -0600, Robert Kern wrote: >>> What's the point of the wheel spinning? Did I miss something? >> >> I wonder whether it's for some kind of framework with a main loop like >> >> for it in list_of_iterables: >> for x in it: >> do_this_or_that (x) >> >> where, every once in a while one wants to throw some arbitrary code >> into the process, in the form of an empty iterable with side effects. > > Yes. That is exactly what the OP said in his original post: > > """ > I have some generators that do stuff, then start yielding results. On > occasion, I don't want them to yield anything ever-- they're only really > "generators" because I want to call them /as/ a generator as part of a > generalized system. """
But he doesn't say anything about side-effects. If you're passing generators around, sometimes you want an empty generator, just as sometimes you want an empty string, or list, or whatever. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
