md5 for large files

Christos TZOTZIOY Georgiou tzot at sil-tec.gr
Wed Mar 5 00:57:53 CET 2003


On Tue, 04 Mar 2003 13:21:51 -0500, rumours say that Peter Hansen
<peter at engcorp.com> might have written:

>> Large is any file that I want to transfer around.  For example the gpg
>> library for windows that I just downloaded is a little over 1 mb and has a
>> defined md5 value that I'd like to compare.  
>
>Well, if you're really talking about such small "large" files, then don't
>worry about memory usage and just use Dave's solution without the reading-
>a-block-at-a-time thing:
>
>import md5
>m = md5.new()
>m.update(open('somefile','rb').read())
>print m.digest()

I believe m.hexdigest() will be more useful in this specific example for
comparison purposes.
-- 
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bofh at sil-tec.gr
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