How To Do It Faster?!?

[Laszlo Zsolt Nagy]

andrea.gavana at agip.it wrote:

>Hello NG,
>
>      in my application, I use os.walk() to walk on a BIG directory. I need
>to retrieve the files, in each sub-directory, that are owned by a
>particular user. Noting that I am on Windows (2000 or XP), this is what I
>do:
>
>for root, dirs, files in os.walk(MyBIGDirectory):
>
>    a = os.popen("dir /q /-c /a-d " + root).read().split()
>
>  
>
....

>Does anyone know if there is a faster way to do this job?
>  
>
You can use the stat module to get attributes like last modification 
date, uid, gid etc. The documentation of the stat module has a nice 
example. Probably it will be faster because you are running an external 
program (well, "dir" may be resident but still the OS needs to create a 
new shell and interpret the parameters on every invocation).
If the speed is the same, you may still want to use the stat module because:

- it is platform independent
- it is independent of any external program (for example, the DIR 
command can change in the future)

Best,

Laci

-- 
_________________________________________________________________
  Laszlo Nagy		      web: http://designasign.biz
  IT Consultant		      mail: gandalf at geochemsource.com

     		Python forever!