访问动态布局ID Kivy

Question

我需要能够访问布局ID以便为其添加形状。问题是布局的id总是在变化。我将如何获取ID，以便更改特定的布局？

代码：

can = self.root.get_screen("three")
...
        get_score = data.get(key, {}).get('score')

        new_pos = can.pos
        for x in range(-1, get_score): # had to use -1 to get correct amount of shapes
            if x % 10 == 0:
                layout = GridLayout(id=str(x), cols=1, size_hint= (None,None))
                can.ids.my_box.add_widget(layout)

            with can.ids.my_box.ids.x.canvas:
                Color(0, 1, 0, .75, mode='rgba')
                rect = Rectangle(pos=new_pos, size=(30, 30))
            new_pos[0] += rect.size[1]
            new_pos[0] += rect.size[0]

        for child in can.ids.my_box.children: #used to check how many cols are added
            print(child.id)

错误：AttributeError: 'super' object has no attribute '__getattr__'