Problem with sha.new

John Machin sjmachin at lexicon.net
Sat Jul 9 14:14:07 CEST 2005


Florian Lindner wrote:
> Hello,
> I try to compute SHA hashes for different files:
> 
> 
> for root, dirs, files in os.walk(sys.argv[1]):




>     for file in files:
>         path =  os.path.join(root, file)
>         print path
>         f = open(path)
print "sha is", repr(sha) ### self-help !!!!!
>         sha = sha.new(f.read())
print "sha is", repr(sha) ### self-help !!!!!
>         sha.update(f.read())
>         print sha.hexdigest()
> 
> 
> this generates a traceback when sha.new() is called for the second time:
> 
> /home/florian/testdir/testfile
> c95ad0ce54f903e1568facb2b120ca9210f6778f
> /home/florian/testdir/testfile2
> Traceback (most recent call last):
>   File "duplicatefinder.py", line 11, in ?
>     sha = sha.new(f.read())
> AttributeError: new
> 
> What is wrong there?
> 
"sha" no longer refers to the module of that name; it refers to the 
sha-object returned by the FIRST call of sha.new. That sha-object 
doesn't have a method called "new", hence the AttributeError exception.



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