In [2]: Traceback (most recent call last):
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backends/backend_qt4.py", line 238, in keyPressEvent
    FigureCanvasBase.key_press_event( self, key )
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backend_bases.py", line 1608, in key_press_event
    self.callbacks.process(s, event)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/cbook.py", line 312, in process
    proxy(*args, **kwargs)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/cbook.py", line 239, in __call__
    return mtd(*args, **kwargs)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backend_bases.py", line 2418, in key_press
    key_press_handler(event, self.canvas, self.canvas.toolbar)
  File "/home/mspacek/src/matplotlib/lib/matplotlib/backend_bases.py", line 2315, in key_press_handler
    self.full_screen_toggle()
NameError: global name 'self' is not defined