def show_cursor(self, show):
        """Show or hide the cursor.  Cursor is shown if show is True."""
        if show:
            self.displaycontrol |= LCD_CURSORON
        else:
            self.displaycontrol &= ~LCD_CURSORON
        self.write8(LCD_DISPLAYCONTROL | self.displaycontrol)
Show or hide the cursor.  Cursor is shown if show is True.