On Wed, Jun 23, 2021 at 8:30 AM Soni L. <fakedme...@gmail.com> wrote: > > > > On 2021-06-22 5:54 p.m., Chris Angelico wrote: > > On Wed, Jun 23, 2021 at 6:41 AM Soni L. <fakedme...@gmail.com> wrote: > > > It would have local scope, similar to uh... locals. Y'know how locals > > > are just sugar for locals()['foo'] and stuff? Yeah. > > > > Not really, no, they're not. :) The dictionary returned by locals() > > isn't actually an implementation detail of local name lookups. > > It's... part of the language. Not an implementation detail. The > dictionary returned by locals() is an inherent part of local name > lookups, isn't it?
No, it's not. Most definitely not. https://docs.python.org/3/library/functions.html#locals > > Have you put any thought into how you would deal with the problem of > > recursive __dot__ calls? > > Let it recurse! > > Globals and locals don't go through __dot__, so you can just... use > them. In particular, you can always use getattr(), and probably should. > Or even set __dot__ to getattr inside it, like so: > > def __dot__(left, right): > __dot__ = getattr > foo.bar # same as getattr(foo, "bar") because we set (local) __dot__ > to getattr above I can't actually pin down what I'm averse to here, but it gives me a really REALLY bad feeling. You're expecting every attribute lookup to now look for a local or global name __dot__ (or, presumably, a nonlocal, class, or builtin), and do whatever that does. That seems like a really effective foot-gun. Have you actually tried designing this into a larger project to see what problems you run into, or is this something you've only considered at this trivial level? 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/YOPTCIYV4GSW3N7EA7KPLJBKNVSNANXZ/ Code of Conduct: http://python.org/psf/codeofconduct/
