Bento has a setup.py file, and can be installed as any other conventional python software:
python setup.py install --user # for python >= 2.6
python setup.py install # otherwise
Bento is now able to install itself. First, you need to create the bentomaker script:
python bootstrap.py
This will create a script (or an exe on windows) which can be used to install bento. Once created, bento is installed as a regular bento package:
./bentomaker configure
./bentomaker build
./bentomaker install
# Or an egg
./bentomaker build_egg
# Or a windows installer
./bentomaker build_wininst