pygtk

• http://eccentric.cx/misc/pygtk/pygtkfaq.html

gstreamer

• http://www.jejik.com/articles/2007/01/python-gstreamer_threading_and_the_main_loop/

gobject.MainLoop

• http://hosting.1command.com/fbsd/doc/pygobject/class-gobjectmainloop.html
• http://roscidus.com/desktop/node/413
• http://eccentric.cx/misc/pygtk/pygtkfaq.html#20.11