On Sun, Oct 7, 2018 at 3:45 PM Terry Reedy <tjre...@udel.edu> wrote: > > On 10/7/2018 1:34 PM, Chris Barker via Python-Dev wrote: > > On Fri, Oct 5, 2018 at 3:01 PM Brett Cannon <br...@python.org > > <mailto:br...@python.org>> wrote: > > > > I'm also fine with saying that keys in **kwargs that are not proper > > identifiers is an implementation detail. > > > > > > It's not just **kwargs -- you can also use arbitrary names with > > setattr() / getattr() : > > > > In [6]: setattr(foo, "4 not an identifier", "this works") > > > > In [7]: getattr(foo, "4 not an identifier") > > Out[7]: 'this works' > > When this behavior of set/getattr was discussed a decade or so ago, > Guido said not to disable it, but I believe he said it should not be > considered a language feature. There are other situations where CPython > is 'looser' than the spec.
>From an alternative implementation point of view, CPython's behaviour *is* the spec. Practicality beats purity and all that. - Jeff _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
