hashing with git and python

gistfile1.sh-session

zsh» git init example
Initialized empty Git repository in /tmp/example/.git/
zsh» cd example
zsh» cp ../objektmodell-beispiel/hello.py .
zsh» cat hello.py
#! /usr/bin/env python

""" Hello World! """

print 'Hello World!'
zsh» git hash-object -w hello.py
52ea6d6f53b2990f5d6167553f43c98dc8788e81
zsh» cat .git/objects/52/ea6d6f53b2990f5d6167553f43c98dc8788e81
xKÊÉOR03gPVTÐ/-.ÒOÊÌÓOÍ+S(¨,ÉÈÏãâRRRRðHÍÉÉÏ/ÊIQT
pqeæ(¨#K¨sHÝ%                                                                                                                         zsh» ipython

In [1]: import zlib

In [2]: data = open(".git/objects/52/ea6d6f53b2990f5d6167553f43c98dc8788e81").read()

In [3]: zlib.decompress(data)
Out[3]: 'blob 67\x00#! /usr/bin/env python\n\n""" Hello World! """\n\nprint \'Hello World!\'\n'

In [4]: dec = zlib.decompress(data)

In [5]: import hashlib

In [6]: hashlib.sha1(dec).hexdigest()
Out[6]: '52ea6d6f53b2990f5d6167553f43c98dc8788e81'