def new_cursor_left(self):
        """Add a new cursor one character left."""
        new = []
        for cursor in self.cursors:
            if cursor.x == 0:
                continue
            new.append(Cursor(cursor.x-1, cursor.y))
        for c in new:
            self.cursors.append(c)
        self.move_cursors()
        self.scroll_up()
dataset/ETHPy150Open richrd/suplemon/suplemon/editor.py/Editor.new_cursor_left/original