This function returns the y position of the face detected. You can specify the face for which the value is needed. The position is mapped with the stage coordinates.
The example demonstrates how to make the sprite track and stamp its image on the mouse when the space key is pressed in Python.
Code
sprite = Sprite('Tobi')
pen = Pen()
pen.clear()
while True:
if (sprite.iskeypressed("space")):
sprite.setx(sprite.mousex())
sprite.sety(sprite.mousey())
pen.stamp()