speeding up Python

[Luis P. Mendes]

Hi,

I have a 1000 line python script that takes many hours to finish. It is
running with six inside 'for' loops.

I've searched the net for ways to speed up the proccess.

Psyco improves performance around 3% in this case which is not good enough.

How can I dramatically improve speed?

I tried to find some tool that converts Python to C automatically but
couldn't. As I don't know C, I think that weave and PyInline for
example are out of the solution.

I'm using Linux.

Luis

 

[Dave Brueck]

I have a 1000 line python script that takes many hours to finish. It is
running with six inside 'for' loops.

Hi Luis,

Before going too much into optimizing your current code, you might want to take
a step back and see if another approach to your problem might work instead.
Python is great for this sort of algorithmic experimentation.

So: what are you doing? In particular, why SIX nested loops?

It's not uncommon for a different algorithm to yield performance improvements
that are orders of magnitude greater than what just optimizing the code could
achieve.

-Dave