Bug in setup.py

[KonstantinosX]

Traceback (most recent call last):
File "setup.py", line 34, in
versfile = os.path.join(os.path.dirname(file), "gvas", "init.py")
NameError: name 'os' is not defined

(There must be something else up with this. I tried importing os and something else broke, didn't look into it past that)

Thanks