[Tutor] md5 message digest algorithm

[Ales Zemene]

hi, suprising for me is that making .py file:
import md5
hash = md5.new()
and running it produces :
AttributeError: 'module' object has no attribute 'new'

and similar : 
from Crypto.Hash import MD5
ImportError: cannot import name MD5

but in both cases it works on python command line intepretter.

Ales
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