On Thu, 16 Jun 2022 at 08:25, Steven D'Aprano <st...@pearwood.info> wrote: > > On Thu, Jun 16, 2022 at 12:02:04AM +1000, Chris Angelico wrote: > > On Wed, 15 Jun 2022 at 22:38, Steven D'Aprano <st...@pearwood.info> wrote: > > > There's no consensus that this feature is worth the added complexity, or > > > even what the semantics are. The PEP punts on the semantics, saying that > > > the behaviour may vary across implementations. > > > > Excuse me? I left one or two things open-ended, where they're bad code > > and I'm not going to lock the language into supporting them just > > because the reference implementation happens to be able to, but > > "punts"? That's a bit much. The semantics are QUITE specific. > > Under the Specification section, the PEP explicitly refers to > behaviour which "may fail, may succeed", and different behaviour which > is "Highly likely to give an error", and states "Using names of later > arguments should not be relied upon, and while this MAY work in some > Python implementations, it should be considered dubious". > > So, yes, the PEP *punts* on the semantics of the feature, explicitly > leaving the specification implementation-dependent. >
One very very specific aspect of it is left undefined. Are you really bothered by that? I don't understand how you can dare to write a single line of code, given how many other things are actually not specified. Have you ever written a __del__ method? Python *does not guarantee* when it will be called. Wow! Python is hopelessly implementation-dependent, there's no WAY this should ever be used! And then you take this tiny point where I left it open to implementers to choose, and you say that the PEP "punts on the semantics" as if the entire specification is in doubt. I'm trying as hard as I can to believe that you're arguing in good faith, but it's getting less and less plausible. 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/JQI3QMNWNFMNS5XICJSX5NMEF52IHWBR/ Code of Conduct: http://python.org/psf/codeofconduct/
