The active DiffPy development team is Pavol Juhas, Kevin Knox, Xiaohao Yang, Michael McKerns, Chris Farrow, and Simon J. L. Billinge. Former members of the project are Emil Bozin, Wenduo Zhou, Peng Tian, Timur Davis, Jiwu Liu, and Dmitriy Bryndin.


The DiffPy project is currently supported by Laboratory Directed Research and Development (LDRD) Program 12-007 (Complex Modeling) at Brookhaven National Laboratory (BNL). BNL is funded by the US Department of Energy Office of Science, Office of Basic Energy Sciences under contract DE-AC02-98CH10886. Previous funding for DiffPy was provided by the Distributed Data Analysis of Neutron Scattering Experiments (DANSE) project funded by the US National Science Foundation under award DMR-0520547. More information on DANSE can be found at The early developments of PDFfit2 were funded by NSF grant DMR-0304391 in the Billinge-group, and with support from Michigan State University. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the respective funding bodies.

Additional Contributions

The DiffPy team would like to thank multiple users for their help and comments during the development of this release: Dragica Podgorski, Valentina Felsen, and Kirsten M. Ø. Jensen.