get distance

so i have this script:

import GameLogic

con = GameLogic.getCurrentController()
own = con.owner

con = own.getDistanceTo(“object”)

own[“long”] = con

its used to get the distance to determinate object, i want to change it so i gets the distance to a determinate property in way of an object, i know this is really stupid, but i have NO python knowledge, so i will be so happy with any help :wink:

PD:it is for blender 2.49