I've started a repository for common useful python robot code. I'm sure we all have functions/objects that are "things that should be in WPILib, but aren't". This is place to put that code -- contributions are welcome! The package will be installed by default in RobotPy for 2015.
https://github.com/robotpy/robotpy-wpilib-utilities
Initial ideas are utility classes such as drivers not included with WPILib, functionality that WPILib lacks, and other misc things.