Paper: pyFRET: A Python Library for Single Molecule Fluorescence Data Analysis (R. Murphy, S. Jackson, D. Klenerman)

Paper for EuroScipy 2014 proceedings :)
It's worth mentioning that the code is hosted on bitbucket. I had to dig around, because most code is on GitHub these days.

Additionally, the license appears to be BSD 3-clause, not MIT/BSD. (Though they have similar properties, they are not the same.)