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Sat Dec 10 00:24:29 CET 2005 · http://mail.python.org/pipermail/python-dev/2005-December/058535.html

Ian Bicking wrote:
>        (Let's hope that these variables are meant for use inside one
>        module only.)  The conventions are about the same as those for
>        functions.  Modules that are designed for use via "from M import *"
>        should prefix their globals (and internal functions and classes)
>        with an underscore to prevent exporting them.
> 
> It seems like __all__ is a better technique than leading underscores.

I think it should also go in (perhaps in the imports section) that 
__all__ comes after the imports, but before code.  I thought this was in 
there already, because I know I've seen it documented elsewhere.

-- 
Ian Bicking  /  ianb at colorstudy.com  /  http://blog.ianbicking.org

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[Python-Dev] PEP 8 updates/clarifications