To ensure a bright future for the DiffPy project it is essential to build a strong community of users and contributing developers. There are several Google groups for support and development of DiffPy and related applications.
diffpy-users Help on usage of DiffPy-CMI, PDFgetX3, PDFgui, and other DiffPy components. This group is a knowledge base for PDFgui user tips, tricks and troubleshooting. Feel free to search for answers or ask your question here.
diffpy-dev For bug reports, feature requests, and discussions about development and changes of DiffPy-CMI, PDFgetX3, PDFgui, and other DiffPy components. Materials scientists, chemists physicists, engineers - please contribute by telling us your needs or sharing your suggestions here.
You can also share your comments, suggestions, praise or complaints by sending email to Simon J. L. Billinge.
To report or browse bugs, please visit https://github.com/diffpy and continue to the relevant project and its Issues.