On Thu, 3 Mar 2022 at 21:14, Steven D'Aprano <st...@pearwood.info> wrote: > What did I say that made you think I denied the existence of filtered > iteration? Was it the post where I pointed out we've been able to do > filtered iteration going back to Python 1.x days?
ANYTHING can be done by composing concepts. We don't need anything more advanced than Brainf*. Why do we have better concepts? Because they do a better job of expressing abstract concepts. > To be clear, there are lots of concepts in coding. Not all of them > require their own specialised syntax. We don't have specialised syntax > for a try...except block inside a loop, we use composition by putting a > try...except block inside a for loop. > > Composition of statements is not a bug to be fixed. Indeed, but I'm putting the viewpoint - which a number of other people have also put - that filtered iteration DOES deserve a better way of expressing it. > Nobody said that the idea of filtered looping doesn't make sense. > They're only questioning whether it needs its own syntax instead of > composing existing syntax. Yes. And it keeps coming up, so I think you should probably acknowledge the fact that maybe, just maybe, this is more significant than "one newline". > > You're thinking FAR FAR too concretely about this. It's not about > > newlines. > > Of course it is. The whole point of the proposal is to move a two line > statement into a single line. Earlier in this thread, I pointed out that > this proposal adds no new functionality to Python. It doesn't allow us > to do anything we can't already do, or even make it easier to do it. > > Literally all it saves is a newline and an indent. No, it is not. It is expressing the concept of filtered iteration. Do you, or don't you, accept that that is a concept? One moment you say that it is a concept but you think it shouldn't get dedicated syntax, then the next, you imply that it isn't even a concept, and all we're doing is reformatting code. That is simply not the case. > > It's about expressing programmer concepts. > > Right. And composing a for-loop with a if statement expresses that > concept perfectly. As does filter(). No, it doesn't. > > > Fresh strawberries are great. Mushroom sauce is great. But strawberries > > > with mushroom sauce is ... not. > > > > > > > You DO know that you just made several people think "hmm, maybe I > > should try strawberries with mushroom sauce", right? > > :-) > I love how utterly unapologetic you are. And I really hope that someone actually tries it, and reports back to the list. Who knows? Maybe we'll start a new fad! ChrisA _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/XJGDTBA3SWENLPWMVXOY2PHGKWC33SMH/ Code of Conduct: http://python.org/psf/codeofconduct/
