immutable int problem

main.py

import pyglet


def update_image(dt):
  img = pyglet.image.load(image_paths[count]) 
  #... do other stuff
  count += 1 #cant do this cause its immutable


count = 60

image_paths = get_image_paths() # returns a list

pyglet.clock.schedule_interval(update_image, 0.11)

pyglet.app.run()

Shoudl be def update_image