TypeError: integer argument expected, got float

[Alejandro J. Cura]

Traceback (most recent call last):
  File "typuspocus/game.py", line 1312, in <module>
    main()
  File "typuspocus/game.py", line 1309, in main
    g.run( MainMenu(g) )
  File "/home/alecu/pyweek/typuspocus/typuspocus/engine.py", line 29, in run
    scene.run( )
  File "/home/alecu/pyweek/typuspocus/typuspocus/engine.py", line 80, in run
    self.event(event)
  File "typuspocus/game.py", line 1200, in event
    self.do_action(sel)
  File "typuspocus/game.py", line 1205, in do_action
    self.play_history()
  File "typuspocus/game.py", line 1250, in play_history
    result = self.runScene( l )
  File "/home/alecu/pyweek/typuspocus/typuspocus/engine.py", line 63, in runScene
    ret = scene.run()
  File "/home/alecu/pyweek/typuspocus/typuspocus/engine.py", line 80, in run
    self.event(event)
  File "typuspocus/game.py", line 225, in event
    pygame.time.set_timer(CLOCK_TICK, tick_rate)
TypeError: integer argument expected, got float