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Showing content from http://mail.python.org/pipermail/python-dev/2007-February/070875.html below:

[Python-Dev] __dir__ and __all__

[Python-Dev] __dir__ and __all__ [Python-Dev] __dir__ and __all__Giovanni Bajo rasky at develer.com
Sat Feb 3 20:47:17 CET 2007
Hello,

I could not find a PEP for __dir__. I was thinking today that if __dir__ was 
added, I would find it useful if modules implemented it by returning __all__ 
(when __all__ is defined). Or even better, to return the same names that would 
be imported by a star-import (so, if __all__ is not defined, all names which 
do not start with '_').

This wouldn't prevent introspection tools to use mod.__dict__ to still access 
the module's global dictionary, of course. But it would allow module's authors 
to more clearly document the module's public API.
-- 
Giovanni Bajo

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