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Sun Nov 30 20:15:50 CET 2014 · https://mail.python.org/pipermail/python-dev/2014-November/137342.html

On Sun, Nov 30, 2014 at 6:15 AM, Brett Cannon <brett at python.org> wrote:
>
>  On Sat, Nov 29, 2014, 21:55 Guido van Rossum <guido at python.org> wrote:
>
> All the use cases seem to be about adding some kind of getattr hook to
> modules. They all seem to involve modifying the CPython C code anyway. So
> why not tackle that problem head-on and modify module_getattro() to look
> for a global named __getattr__ and if it exists, call that instead of
> raising AttributeError?
>
>  Not sure if anyone thought of it. :) Seems like a reasonable solution to
> me. Be curious to know what the benchmark suite said the impact was.
>
Why would there be any impact? The __getattr__ hook would be similar to the
one on classes -- it's only invoked at the point where otherwise
AttributeError would be raised.

-- 
--Guido van Rossum (python.org/~guido)
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best approach to enabling "metamodules"?