Related to #65 [Python 2.7 does not support shutil.which](https://docs.python.org/2.7/library/shutil.html). This was only introduced in [Python 3.3](https://docs.python.org/3/library/shutil.html#shutil.which)
Related to #65
Python 2.7 does not support shutil.which. This was only introduced in Python 3.3