(self, item, fun, num=1, add=None)
Bind fun to mouse-button-release event on turtle.
        fun must be a function with two arguments, the coordinates
        of the point on the canvas where mouse button is released.
        num, the number of the mouse-button defaults to 1

        If a turtle is clicked, first _onclick-event will be performed,
        then _onscreensclick-event.
Bind fun to mouse-button-release event on turtle.
        fun must be a function with two arguments, the coordinates
        of the point on the canvas where mouse button is released.
        num, the number of the mouse-button defaults to 1
Bind fun to mouse - button - release event on turtle . fun must be a function with two arguments the coordinates of the point on the canvas where mouse button is released . num the number of the mouse - button defaults to 1
def _onrelease(self, item, fun, num=1, add=None):
        """Bind fun to mouse-button-release event on turtle.
        fun must be a function with two arguments, the coordinates
        of the point on the canvas where mouse button is released.
        num, the number of the mouse-button defaults to 1

        If a turtle is clicked, first _onclick-event will be performed,
        then _onscreensclick-event.
        """
        if fun is None:
            self.cv.tag_unbind(item, "<Button%s-ButtonRelease>" % num)
        else:
            def eventfun(event):
                x, y = (self.cv.canvasx(event.x)/self.xscale,
                        -self.cv.canvasy(event.y)/self.yscale)
                fun(x, y)
            self.cv.tag_bind(item, "<Button%s-ButtonRelease>" % num,
                             eventfun, add)
def _onrelease ( self , item , fun , num = 1 , add = None ) : if fun is None : self . cv . tag_unbind ( item , "<Button%s-ButtonRelease>" % num ) else : def eventfun ( event ) : x , y = ( self . cv . canvasx ( event . x ) / self . xscale , - self . cv . canvasy ( event . y ) / self . yscale ) fun ( x , y ) self . cv . tag_bind ( item , "<Button%s-ButtonRelease>" % num , eventfun , add )