CosmoSIS is a cosmological parameter estimation code. It structures cosmological parameter estimation to ease re-usability, debugging, verifiability, and code sharing in the form of calculation modules. Witten in python, CosmoSIS consolidates and connects existing code for predicting cosmic observables and maps out experimental likelihoods with a range of different techniques.
Please cite https://ui.adsabs.harvard.edu/abs/2015A%26C....12...45Z and provide this link in the acknowledgements: https://bitbucket.org/joezuntz/cosmosis/wiki/Home