pyglet
Copyright 2006-2008 Alex Holkner 
http://www.pyglet.org

pyglet includes contributions from the following organisations and
individuals:

Blue Box Devices
SR Research

Anthony Baxter
Anthony Briggs
Ondrej Certik
Alan Green
Brian Grogan Jr
Richard Jones
George LeCompte
Matthew Marshall
Tobias Sargeant
Nathan Stocks

pyglet/window/win32/constants.py is derived from Python for Windows
Extensions.  Copyright 1994-2001 Mark Hammond.

pyglet/image/codecs/pypng.py is derived from png.py.  Copyright 2006
Johann C.  Rocholl.

contrib/layout/Plex is derived from Plex.  Copyright Greg Ewing.

tools/wraptypes/lex.py and tools/wraptypes/yacc.py are derived from ply.
Copyright 2001-2006 David M.  Beazley.
