#F1 = Fram Start
#F2 = frame End
#Step=frames between IPO keys
#select your objct which follow the path
#and make alt + p in the text windows (where you've got the scrit)
#enjoy

step=10
f1 = 0
f2 = 100
import Blender
#The selected Object
ob = Blender.Object.GetSelected()[0]
#The duplicant
Blender.Object.Duplicate()
ob2 = Blender.Object.GetSelected()[0]
ob2.clrParent()
ob2.clearIpo()
 
for i in range(f1 , f2 , step):
	Blender.Set('curframe' , i)
	ob2.setMatrix( ob.getMatrix() )
 	ob2.insertIpoKey(0)
 	ob2.insertIpoKey(1)