[Tutor] dictionary looping problem

[Jeremiah Jester]

Thanks for clearing this up for me. 

On Tue, 2008-12-02 at 13:25 -0800, Steve Willoughby wrote:
> On Tue, Dec 02, 2008 at 01:08:09PM -0800, Jeremiah Jester wrote:
> > Hello,
> >
> > I'm trying to gather a list of files and md5 hash them to do a
> checksum.
> > I've created a function for each dictionary. However, when i print
> out
> > the dictionary I don't get all the items. Any ideas?
> 
> Yep.  Don't use os.system() there. 
> 
> 1. you're running the "md5" program externally when you don't need to,
>    since Python has the ability to compute md5 checksums on its own,
>    which you already know because you imported that module at the top
>    of your script (and then didn't use).
> 
> 2. The return value from os.system() is NOT the hash, so what you're
>    storing in the dictionary is not going to be that unique, and so
>    each call which yields the same return value (0, usually) will
>    overwrite that element in the dict.
> 
> --
> Steve Willoughby    |  Using billion-dollar satellites
> steve at alchemy.com   |  to hunt for Tupperware.
> 
> 
> 



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