[Python-Dev] optimizing out local variables

Gregory P. Smith greg at krypto.org
Mon Feb 25 05:39:53 CET 2008


On 2/24/08, Guido van Rossum <guido at python.org> wrote:
>
> Let's only do it for -O; the optimization may interfere with debugging the
> code.


Does anyone ever actually bother to use -O?

On Sun, Feb 24, 2008 at 6:27 PM, Neal Norwitz <nnorwitz at gmail.com> wrote:
>
> > Short description (see http://bugs.python.org/issue2181 for the patch
> >  and more details):
> >
> >  Optimize code like:
> >    x = any_expression
> >    return x
> >
> >  to:
> >    return any_expression
> >
> >  The local variable x is no longer set before returning.  Is this
> >  appropriate for .pyc generation or should it only be done for .pyo
> >  files?
> >
> >  n
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>
>
> --
> --Guido van Rossum (home page: http://www.python.org/~guido/)
>
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