text: #!/usr/bin/env python
  
  from __future__ import print_function
  
  # For detailed comments on animation and the techniques used here, see
  # the wiki entry
  # http://www.scipy.org/wikis/topical_software/MatplotlibAnimation
  import time
  
  import gtk, gobject
  
  import matplotlib
  matplotlib.use('GTKAgg')
  
  import matplotlib.pyplot as plt
  import pipong
  
  
  fig, ax = plt.subplots()
  canvas = ax.figure.canvas
  
  
  def start_anim(event):
  #    gobject.idle_add(animation.draw,animation)
      gobject.timeout_add(10, animation.draw, animation)
      canvas.mpl_disconnect(start_anim.cid)
  
  animation = pipong.Game(ax)
  start_anim.cid = canvas.mpl_connect('draw_event', start_anim)
  
  
  tstart = time.time()
  plt.grid()  # to ensure proper background restore
  plt.show()
  print('FPS:' , animation.cnt/(time.time()-tstart))
  