Daniel Greenfeld is the co-founder of Development at Cartwheel Web and often consults for Revsys. Working with Steve Holden, chairman of the Python Software Foundation he helps author a series of classes on Python 3 for the O'Reilly School of Technology. He is a co-creator of Django Packages, Packaginator, author of django-uni-form, has done a lot of work in the field of usability, and does his best to support diversity in the tech community.