Daniel Greenfeld
Daniel Greenfeld and Audrey Roy are best known for their open-source community leadership work on the following initiatives:
DjangoPackages.com and the OpenComparison framework. We ran the largest sprint at PyCon 2011.
PyLadies, a women's outreach/mentorship group. Nurturing the group was basically a 2nd fulltime job for us in 2011.
The first ever PyCon Philippines, a 300-person conference about the Python programming language held in the Philippines.
The LA Open Source Hackathon event series, which brings together open-source developers from different programming backgrounds.
They do Python and Django development and run a small Python/Django consulting shop called Cartwheel Web.