Python 删除文件中给定id的小部件

我想使用我在KV文件中给对象的KV id删除GUI中特定屏幕中的小部件。 这是我的kv文件：

<CreateAccountWindow>:
    name: "create"

    namee: namee
    mail: mail
    email:email
    
    FloatLayout:
        cols:1

        canvas.before:
            Rectangle:
                pos: self.pos
                size: self.size
                source: "doorway.jpg"
            
        FloatLayout:
            size: root.width, root.height/2

            Label:
                text: "Add a person to the Database"
                size_hint: 0.8, 0.2
                color: 0,0,0,1
                pos_hint: {"x":0.1, "top":0.95}
                font_size: (root.width**2 + root.height**2) / 14**4


            Label:
                size_hint: 0.5,0.12
                pos_hint: {"x":0, "top":0.8}
                text: "Name: "
                color: 0,0,0,1
                font_size: (root.width**2 + root.height**2) / 14**4

            Label:
                id:mail
                text: "Email:"
                size_hint: 0.5,0.12
                color: 0,0,0,1
                pos_hint: {"x":0, "top":0.6}
                font_size: (root.width**2 + root.height**2) / 14**4
            

            TextInput:
                pos_hint: {"x":0.5, "top":0.8}
                size_hint: 0.4, 0.12
                id: namee
                multiline: False
                font_size: (root.width**2 + root.height**2) / 14**4
            
            TextInput:
                id: email
                pos_hint: {"x":0.5, "top":0.6}
                size_hint: 0.4, 0.12
                multiline: False
                font_size: (root.width**2 + root.height**2) / 14**4


        Button:
            pos_hint:{"x":0.2,"y":0.3}
            size_hint: 0.6, 0.15
            font_size: (root.width**2 + root.height**2) / 14**4
            text: "Already In the dataset? Request Entry"
            on_release:
                root.manager.transition.direction = "left"
                root.login()

        Button:
            pos_hint:{"x":0.2,"y":0.1}
            size_hint: 0.6, 0.15
            text: "Submit"
            font_size: (root.width**2 + root.height**2) / 14**4
            on_release:
                root.manager.transition.direction = "left"
                root.submit()


<LoginWindow>:
    name: "login"

    FloatLayout:

        canvas.before:
            Rectangle:
                pos: self.pos
                size: self.size
                source: "lock.jpg"
        Button:
            pos_hint:{"x":0.6,"y":0.5}
            size_hint: 0.3, 0.1
            font_size: (root.width**2 + root.height**2) / 14**4
            text: "Request Entry"
            on_release:
                root.manager.transition.direction = "up"
                root.loginBtn()


<MainWindow>:
    n: n
    out: out


    FloatLayout:

        canvas.before:
            Rectangle:
                pos: self.pos
                size: self.size
                source: "doorway.jpg"

        Label:
            id: n
            pos_hint:{"x": 0.1, "top":0.9}
            size_hint:0.8, 0.2
            text: "Username: "

        Button:
            pos_hint:{"x":0.35,"y":0.6}
            size_hint: 0.3, 0.1
            font_size: (root.width**2 + root.height**2) / 15**4
            text: "Add a person"
            on_release:
                root.manager.transition.direction = "right"
                root.createBtn()
        Button:
            pos_hint:{"x":0.35,"y":0.45}
            size_hint: 0.3, 0.1
            font_size: (root.width**2 + root.height**2) / 15**4
            text: "Edit permmited residents"
            on_release:
                root.manager.transition.direction = "right"
                root.deleteBtn()

        Label:
            id: out
            pos_hint:{"x": 0.1, "top":0.1}
            size_hint:0.8, 0.2
            color: 0,0,0,1
            text: "press Out if you would like to go back to the Entry screen\n"


        Button:
            pos_hint:{"x":0.35, "y": 0.1}
            size_hint:0.3,0.1
            font_size: (root.width**2 + root.height**2) / 15**4
            text: "Out"
            on_release:
                app.root.current = "login"
                root.manager.transition.direction = "down"

<EditDatabase>:

    fc: fc
    BoxLayout:
        orientation: 'vertical'

        canvas.before:
            Rectangle:
                pos: self.pos
                size: self.size
                source: "doorway.jpg"

        BoxLayout:
            size_hint_y: None
            height: sp(52)

            Button:
                text: 'Icon View'
                on_press: fc.view_mode = 'icon'
            Button:
                text: 'List View'
                on_press: fc.view_mode = 'list'

        FileChooser:
            id: fc
            rootpath: "Face/Faces"
            dirselect: True
            multiselect: True
            FileChooserIconLayout
            FileChooserListLayout
        
        BoxLayout:
            size_hint_y: None
            height: sp(52)

            Button:
                text: "Out"
                on_release:
                    app.root.current = "main"
                    root.manager.transition.direction = "down"

            Button:
                text: "Delete"
                on_release:
                    root.deleteBtn(fc.selection)

            Button:
                text: "Update"
                on_release:
                    root.updateBtn(fc.selection)

我读过一些建议用这种方法解决问题的帖子，但似乎不起作用。 我想问一下，删除这些小部件的正确方法是什么。

---

如果您有任何提示，我将不胜感激。

您的

kv

中的

layout

id在哪里？在给内部floatlayout一个id之后，我不知道您可以给一个布局一个id，我如何通过screen类访问它？与您在发布的代码中所做的完全一样。我知道，是的，它现在起作用了。非常感谢，答案很明显，但我不得不把布局也当作一个对象。

class CreateAccountWindow(Screen):
    namee = ObjectProperty(None)
    mail = ObjectProperty(None)
    email = ObjectProperty(None)

    def submit(self):
        username = self.namee.text
        if(db.first_login()):
            self.ids.layout.remove_widget(self.email)
            self.ids.layout.remove_widget(self.mail)