KM3Flux is a collection of neutrino flux models + assorted utilities for computing event weights.
This is developed on python 3.6. Lower versions (especially py2) might or might not work.
Install the dependencies
In your python env, do:
pip install km3flux
or just clone the git repository and install via pip install .
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.