• https://github.com/fnp/wolnelektury
• https://bitbucket.org/filmaster/filmaster-stable/src
• http://live.gnome.org/GnomeLove
• http://docs.python.org/devguide/docquality.html
• https://github.com/pypy/pypy
• http://sourceforge.net/projects/jython/

Some less time consuming tasks:

• https://github.com/pyladies/l33ty – needs code cleanup
• https://github.com/mirumee/fbkit – needs testing and code cleanup