[Python-Dev] Comment on PEP 562 (Module __getattr__ and __dir__)
Guido van Rossum
guido at python.org
Sun Nov 19 20:34:35 EST 2017
On Sun, Nov 19, 2017 at 4:57 PM, Steven D'Aprano <steve at pearwood.info>
wrote:
> On Sun, Nov 19, 2017 at 08:24:00PM +0000, Mark Shannon wrote:
> > Just one comment. Could the new behaviour of attribute lookup on a
> > module be spelled out more explicitly please?
> >
> >
> > I'm guessing it is now something like:
> >
> > `module.__getattribute__` is now equivalent to:
> >
> > def __getattribute__(mod, name):
> > try:
> > return object.__getattribute__(mod, name)
> > except AttributeError:
> > try:
> > getter = mod.__dict__["__getattr__"]
>
> A minor point: this should(?) be written in terms of the public
> interface for accessing namespaces, namely:
>
> getter = vars(mod)["__getattr__"]
>
Should it? The PEP is not proposing anything for other namespaces. What
difference do you envision this way of specifying it would make?
--
--Guido van Rossum (python.org/~guido)
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