def onclick(self, fun, btn=1, add=None):
        self._onscreenclick(fun, btn, add)
Returns the HTML ID attribute of this Widget for use by a <label>,
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/site-packages/turtle.py/TurtleScreen.onclick--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/vendor/django/forms/widgets.py/Widget.id_for_label