On Sat, Oct 3, 2020 at 9:28 AM Serhiy Storchaka <storch...@gmail.com> wrote:
> 03.10.20 18:15, Guido van Rossum пише: > > Is this the only place where a non-class object with __bases__ is > > accepted? Or do we have more such? I recall that long ago you could use > > certain non-class objects as base classes. > > The only other place is object.__dir__(). It recursively iterates the > __class__.__bases__ chain, and __class__ can be a non-type object. > > The code of object.__dir__() is very old, it predates new-style classes, > and currently it gathers names using different algorithm than used in > object.__getattr__(), so object.__dir__() does not always return a list > of names accepted by object.__getattr__(). > Would anything break if we changed `dir()` to use `__mro__` instead of `__bases__`? It would probably be simpler. > > I think all that hackery may predate (and may even have been an > > inspiration for features of) new-style classes. > > I wonder whether it should pass with Python 2. > I suppose you meant "pass" as in "die". I agree. -- --Guido van Rossum (python.org/~guido) *Pronouns: he/him **(why is my pronoun here?)* <http://feministing.com/2015/02/03/how-using-they-as-a-singular-pronoun-can-change-the-world/>
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