ease = 0.0, 0.02, 0.08, 0.18, 0.32, 0.5, 0.68, 0.82, 0.92, 0.98, 1.0

def eased(from_, to):
    interval = to - from_
    for e in ease:
        yield round(from_ + interval * e)

def eased_xy(from_x, from_y, to_x, to_y):
    yield from zip(eased(from_x, to_x), eased(from_y, to_y))


def schedule_animation(callback, from_x, from_y, to_x, to_y, delay=25):
    t = delay
    coords = eased_xy(from_x, from_y, to_x, to_y)
    next(coords)  # Discard the starting coords, we're already there!
    for x, y in coords:
        callback(t, x, y)  # Some after(...) call.
        t += delay


##def callback(t, x, y):
##    canvas.after(t, lambda: canvas.moveto(tag, x, y))
##    # Where tag comes from the surround scope.

if __name__ == '__main__':

    # Show it.

    schedule_animation(print, 10, 1000, 1000, 10)

    # Prints:
    # 25 30 980
    # 50 89 921
    # 75 188 822
    # 100 327 683
    # 125 505 505
    # 150 683 327
    # 175 822 188
    # 200 921 89
    # 225 980 30
    # 250 1000 10