use libxdo to simulate the mouse

SimulateMouse.py

#!/usr/bin/python

from ctypes import *
import time, random
import os

CURRENTWINDOW = 0

# nm -D /usr/lib64/libxdo.so.2 | grep mouselocation
# http://python.net/crew/theller/ctypes/tutorial.html#passing-pointers-or-passing-parameters-by-reference
# http://www.semicomplete.com/files/xdotool/docs/html/xdo_8h.html

if __name__ == '__main__':
    libxdo = CDLL('libxdo.so.2')
    xdo = libxdo.xdo_new(':0.0')

    #print('close display when freed: {0}\n'.format(cast(xdo, POINTER(xdo_t)).contents.close_display_when_freed))
    #libxdo.xdo_type(xdo, CURRENTWINDOW, 'hello', 10)

    print 'Move Slim flush to the left side of your screen, vertically sized to one-third your desktop height.'
    print 'Make sure your appearance hierarchy is big enough to fill the pane'
    print 'Move the divider to Y = 733 and bottom edge of window to 1208'
    print 'Move the mouse to left side of the screen to start the Drag-And-Drop madness.'

    cur_x, cur_y, cur_screen, cur_window = c_int(), c_int(), c_int(), c_int()
    while True:
        libxdo.xdo_mouselocation(xdo, byref(cur_x), byref(cur_y), byref(cur_screen))
        print "Mouse: ", cur_x.value, cur_y.value, cur_screen.value
        time.sleep(1)
        if cur_x.value == 0:
            break

    dnd_x = 20
    dnd_y_min = 771
    dnd_y_max = 1208
    MMB = 2 # 2 or 5

    print 'Starting the test.  Move mouse to left side of the screen to stop.'

    while True:

        # Move the mouse to starting point of drag
        dnd_y = random.randint(dnd_y_min, dnd_y_max)
        libxdo.xdo_mousemove(xdo, dnd_x, dnd_y, cur_screen)

        # Push MMB, move, and release
        libxdo.xdo_mousedown(xdo, 0, MMB)
        drag_target = random.randint(dnd_y_min, dnd_y_max)
        y = float(dnd_y)
        dy = 0.1 * (drag_target - y)
        timeout = 100
        while abs(y - drag_target) > 1 and timeout > 0:
            libxdo.xdo_mousemove(xdo, dnd_x, int(y), cur_screen)
            time.sleep(0.05)
            y += dy
            timeout = timeout - 1
        libxdo.xdo_mouseup(xdo, 0, MMB)

        # Relax in case the user wants to interrupt
        time.sleep(1)
        cur_x, cur_y, cur_screen = c_int(), c_int(), c_int()
        libxdo.xdo_mouselocation(xdo, byref(cur_x), byref(cur_y), byref(cur_screen))
        if cur_x.value == 0:
            break

    libxdo.xdo_free(xdo)