http://blenderartists.org/forum/showthread.php?237761-Blender-2-6-Set-keyframes-using-Python-script

Um mit einem Pythonscript Lampen an- und abzulöschen:

#Select an object named OBJECTNAME
ob = bpy.data.objects['Lamp']
bpy.context.scene.objects.active=ob

#Set current frame to FRAME
bpy.context.scene.frame_set(30)

#Change its solidify modifier thickness
ob.data.energy = 1

#Make a keyframe for this thickness
ob.data.keyframe_insert(data_path="energy")