Source: http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/
by Sander Marechal
I've written a simple Python class for creating daemons on unix/linux systems. It was pieced together for various other examples, mostly corrections to various Python Cookbook articles and a couple of examples posted to the Python mailing lists. It has support for a pidfile to keep track of the process. I hope it's useful to someone.