Method __init__

Python/Turtle.py:863–901

(self, cv, mode=_CFG["mode"],
                 colormode=_CFG["colormode"], delay=_CFG["delay"])

    _RUNNING = True

    def __init__(self, cv, mode=_CFG["mode"],
                 colormode=_CFG["colormode"], delay=_CFG["delay"]):
        TurtleScreenBase.__init__(self, cv)

        self._shapes = {
                   "arrow" : Shape("polygon", ((-10,0), (10,0), (0,10))),
                  "turtle" : Shape("polygon", ((0,16), (-2,14), (-1,10), (-4,7),
                              (-7,9), (-9,8), (-6,5), (-7,1), (-5,-3), (-8,-6),
                              (-6,-8), (-4,-5), (0,-7), (4,-5), (6,-8), (8,-6),
                              (5,-3), (7,1), (6,5), (9,8), (7,9), (4,7), (1,10),
                              (2,14))),
                  "circle" : Shape("polygon", ((10,0), (9.51,3.09), (8.09,5.88),
                              (5.88,8.09), (3.09,9.51), (0,10), (-3.09,9.51),
                              (-5.88,8.09), (-8.09,5.88), (-9.51,3.09), (-10,0),
                              (-9.51,-3.09), (-8.09,-5.88), (-5.88,-8.09),
                              (-3.09,-9.51), (-0.00,-10.00), (3.09,-9.51),
                              (5.88,-8.09), (8.09,-5.88), (9.51,-3.09))),
                  "square" : Shape("polygon", ((10,-10), (10,10), (-10,10),
                              (-10,-10))),
                "triangle" : Shape("polygon", ((10,-5.77), (0,11.55),
                              (-10,-5.77))),
                  "classic": Shape("polygon", ((0,0),(-5,-9),(0,-7),(5,-9))),
                   "blank" : Shape("image", self._blankimage())
                  }

        self._bgpics = {"nopic" : ""}

        self._mode = mode
        self._delayvalue = delay
        self._colormode = _CFG["colormode"]
        self._keys = []
        self.clear()
        if sys.platform == 'darwin':
            # Force Turtle window to the front on OS X. This is needed because
            # the Turtle window will show behind the Terminal window when you
            # start the demo from the command line.
            rootwindow = cv.winfo_toplevel()
            rootwindow.call('wm', 'attributes', '.', '-topmost', '1')
            rootwindow.call('wm', 'attributes', '.', '-topmost', '0')

    def clear(self):
        """Delete all drawings and all turtles from the TurtleScreen.