import pygame
pygame.init()
screen = pygame.display.set_mode((640, 480))
l = pygame.cursors.load_xbm("test.xbm", "test.xbm")
uhr = pygame.time.Clock()
while True:
    pygame.mouse.set_cursor(l[0], l[1], l[2], l[3])
    screen.fill((255, 255, 255))
    pygame.display.update()
    uhr.tick(1)