[Python-Dev] python optimization

Aahz aahz at pythoncraft.com
Thu Sep 15 15:28:24 CEST 2005

On Thu, Sep 15, 2005, Neal Becker wrote:
> I use cpython.  I'm accustomed (from c++/gcc) to a style of coding
> that is highly readable, making the assumption that the compiler will
> do good things to optimize the code despite the style in which it's
> written.  For example, I assume constants are removed from loops.
> In general, an entity is defined as close to the point of usage as
> possible.
> I don't know to what extent these kind of optimizations are available
> to cpython.  For example, are constant calculations removed from
> loops?  How about functions?  Is there a significant cost to putting a
> function def inside a loop rather than outside?

This question is about using Python, not improving/fixing Python; please
use comp.lang.python (python-list) for these kinds of questions and do
not cc python-dev.
Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

The way to build large Python applications is to componentize and
loosely-couple the hell out of everything.

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