Add this script to a "Batch Script" editor (F10) and execute it with Script > Run.
Get the number of control points from "Spline01" and the points' positions. Print the positions to the "Messages" panel:
spline = scene.getSpline("Spline01")
controlPoints = spline.getNumberOfControlPoints()
for i in range(0, controlPoints):
pointPosition = spline.getControlPointPosition(i)
scene.message(str(pointPosition))