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Date: Sun, 7 Jun 2015 17:38:23 +1000
From: Cameron Simpson <cs@zip.com.au>
To: python-list@python.org
Subject: Re: Find in ipython3
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Xref: csiph.com comp.lang.python:92210

On 07Jun2015 08:20, Cecil Westerhof <Cecil@decebal.nl> wrote:
>There is no gain to get in standard Python? By switching from fnmatch
>to re I got almost a speed gain of two. So I was wondering if I could
>do more.

Maybe write a few versions: one really dumb using filename == matchstring (like 
-name foo), one using filename.startswith(matchstring) (like -name '*foo'), one 
using matchstring in filename (like -name '*foo*') and your current one. See 
how much these affect the runtime. You _will_ need to make multiple identical 
runs (OSes do lots of caching, and other processes competing for I/O or the CPU 
will also perturb things).

One the topic of multiple runs, have a look at the timeit module, psecificly 
designed for testing code with multiple runs.

Cheers,
Cameron Simpson <cs@zip.com.au>