(self, fun, btn=1, add=None)
Bind fun to mouse-click event on this turtle on canvas.

        Arguments:
        fun --  a function with two arguments, to which will be assigned
                the coordinates of the clicked point on the canvas.
        btn --  number of the mouse-button defaults to 1 (left mouse button).
        add --  True or False. If True, new binding will be added, otherwise
                it will replace a former binding.

        Example for the anonymous turtle, i. e. the procedural way:

        >>> def turn(x, y):
        ...     left(360)
        ...
        >>> onclick(turn)  # Now clicking into the turtle will turn it.
        >>> onclick(None)  # event-binding will be removed
Bind fun to mouse-click event on this turtle on canvas.
Bind fun to mouse - click event on this turtle on canvas .
def onclick(self, fun, btn=1, add=None):
        """Bind fun to mouse-click event on this turtle on canvas.

        Arguments:
        fun --  a function with two arguments, to which will be assigned
                the coordinates of the clicked point on the canvas.
        btn --  number of the mouse-button defaults to 1 (left mouse button).
        add --  True or False. If True, new binding will be added, otherwise
                it will replace a former binding.

        Example for the anonymous turtle, i. e. the procedural way:

        >>> def turn(x, y):
        ...     left(360)
        ...
        >>> onclick(turn)  # Now clicking into the turtle will turn it.
        >>> onclick(None)  # event-binding will be removed
        """
        self.screen._onclick(self.turtle._item, fun, btn, add)
        self._update()
def onclick ( self , fun , btn = 1 , add = None ) : self . screen . _onclick ( self . turtle . _item , fun , btn , add ) self . _update ( )