parameters: (self, xdummy=None, ydummy=None)
docstring: Set focus on TurtleScreen (in order to collect key-events)
  
          No arguments.
          Dummy arguments are provided in order
          to be able to pass listen to the onclick method.
  
          Example (for a TurtleScreen instance named screen):
          >>> screen.listen()
docstring_summary: Set focus on TurtleScreen (in order to collect key-events)
docstring_tokens: Set focus on TurtleScreen ( in order to collect key - events )
function: def listen(self, xdummy=None, ydummy=None):
          """Set focus on TurtleScreen (in order to collect key-events)
  
          No arguments.
          Dummy arguments are provided in order
          to be able to pass listen to the onclick method.
  
          Example (for a TurtleScreen instance named screen):
          >>> screen.listen()
          """
          self._listen()
function_tokens: def listen ( self , xdummy = None , ydummy = None ) : self . _listen ( )