import shape

def configure(pt, role): 
    print("Where does the line " + role + "?")
    x = input("x: ")
    pt.x = int(x)
    y = input("y: ")
    pt.y = int(y)
    print("The line " +role+ "s at ("+x+ ","+y+ ")." ) 

start = shape.Point2(0,0)
stop = shape.Point2(0,0)
configure(start, "start")
configure(stop, "stop")