You can learn more about the book by visiting the root of this GitHub source code repository. These scripts were written for Python 3, but can also run successfully under Python 2. Simply use 3to2 to ...

Support is being dropped for versions of Python below 2.7, so these modules are obsolete now. - Remove `feature_base.py` - Remove `fix_features.py` - It had imported code from `feature_base.py` Fixes: ...