def on_close(self, view):
        if self.view.id() == view.id():
            if self.on_cancel is not None:
                self.on_cancel()
            self.cleanup()
Convert a point (a tuple of two integers) into a share string - that is,
dataset/ETHPy150Open spywhere/Javatar/core/json_panel.py/JSONPanel.on_close--crossover with--dataset/ETHPy150Open blockstack/secret-sharing/secretsharing/sharing.py/point_to_share_string