eyeD3 is a Python program and module that provides the ability to read and write ID3 tags (v1.x and v2.3/v2.4). It also decodes MP3 headers (bit rate, sample frequency, play time, etc.).
Mesk is a PyGtk+ audio player that supports
multiple playlists and plugins.
A library for collision detection between polygonal objects.
A Swing component for displaying PDF documents in applets or applications.