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Sat Feb 21 00:40:08 CET 2009 · https://mail.python.org/pipermail/python-dev/2009-February/086290.html

On Fri, Feb 20, 2009 at 5:27 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:

> Brett Cannon wrote:
> > If you import pickle and call pickle.A() you will get -13 which is not
> > what you are after.
>
> Ah, you may want to think about that a bit more. There's a reason
> globals are looked up when they're used rather than when their function
> is defined. Even in your own example, _B isn't defined at all when you
> define A.
>

No, I'm afraid Brett is quite right.  Globals are looked up when the
function is executed, true, but they are looked up within the module that
defined the function.  Functions defined in _pypickle would only call the
_pypickle version of functions.

--
Daniel Stutzbach, Ph.D.
President, Stutzbach Enterprises, LLC <http://stutzbachenterprises.com>
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[Python-Dev] Choosing a best practice solution for Python/extension modules