[Chris Angelico] > Almost. Except for the problem that "disgusting" is a subjective term.
Yes. Thank you for explaining the joke. [Brice Parent] > I don't believe we need spam.eggs.cheese.aardvark? (there is exactly the > same number of use cases). We win a bit in readability as it's closer to > most spoken languages, but we lose in granularity as we're hiding any error > that would raise if spam.eggs returned None, so it's not a full win on > this side either... First, I mostly proposed that alternative to serve my argument that there may be a better syntax that PEP 505 would make impossible down the road. It's a half-baked proposal at best and I agree with your over-all sentiment that it's probably not something we should consider either. That being said; in the normal usage of '?.' and '?[]' it would make little sense to only check the beginning of the expression: spam?.eggs.cheese.aardvark # why would you ever do this? It makes some sense to do this: spam.eggs.cheese?.aardvark But in my proposal, you could force any part of the expression to evaluate before the '?' with parentheses and expose whatever errors that might throw: (spam.eggs.cheese).aardvark? On Sun, Jul 29, 2018 at 7:15 AM, Chris Angelico <ros...@gmail.com> wrote: > On Sun, Jul 29, 2018 at 8:32 PM, David Mertz <me...@gnosis.cx> wrote: > > I can hardly imagine a stronger bug magnet than PEP 505. > > The hyperbole in this thread is impressive. Not just "I can hardly > imagine anyone PROPOSING a stronger bug magnet". You cannot imagine > one even existing. > > And this is after people have proposed that "if x = 1:" become the > spelling for assignment expressions - something so well known as a bug > magnet that C compilers specifically warn against it, and style guides > recommend always writing "if (1 == x)" instead. Claiming that "?." is > *the worst possible bug magnet* rather weakens your credibility here. > > ChrisA > _______________________________________________ > Python-ideas mailing list > Python-ideas@python.org > https://mail.python.org/mailman/listinfo/python-ideas > Code of Conduct: http://python.org/psf/codeofconduct/ >
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