pyliblo is a Python wrapper for the liblo OSC library. It supports almost the complete functionality of liblo, allowing you to send and receive OSC messages using a nice and simple Python API.
PixelController is an LED matrix controller which makes it easy to create stunning visuals.
It supports multiple output formats and allows flexible control (OSC, MIDI, Mouse, Keyboard).
An R5RS-compatible Scheme implementation.
Expense report software.