An implementation of the balanced parentheses tree structure as described by Cordova and Navarro (http://www.dcc.uchile.cl/~gnavarro/ps/tcs16.2.pdf).
Installation is a two step procedure right now due to the chicken and egg problem of requiring numpy and cython for setup.py to execute. The package is named iow in pypi as "bp" was taken at time of registration.
conda install numpy cython
pip install iow