NameError：未定义工厂名称 - Kivy

Question

我遇到错误

NameError: 名称“工厂”未定义

当我尝试在 kv 文件中导入工厂时。但是我已经导入了 py 文件。

下面是我的代码，

Kv 文件：

<MessagePopup>:
    id: popup
    auto_dismiss: False
    title: "User Verification"
    size_hint: None, None
    size: 300,300
    space_x: self.size[0]/6
    space_y: self.size[1]/6
    BoxLayout:
        orientation: "vertical"
        spacing: 20
        padding: popup.space_x, popup.space_y
        Label:
            text: "Click to verify"
        Button:
            id:popup_phone
            text:"Verify"
            size_hint_y: 5.5
            on_release:
                Factory.PhonePopup().open()

<PhonePopup@Popup>:
    id: "Phno_popup"
    title: "Verify"
    size_hint: None, None
    size: 300,300
    space_x: self.size[0]/6
    space_y: self.size[1]/6
    BoxLayout:
        orientation: "vertical"
        spacing: 20
        padding: Phno_popup.space_x, Phno_popup.space_y
        Label:
            text:"Enter"
            size_hint_y: 5.5
        TextInput:
            id: id_phno
            size_hint_y: 5.5
            multiline: False
        Button:
            text: "Verify"
            size_hint_y: 5.5
            on_press: root.id_verify()

py 文件：

import mysql.connector
from kivy.app import App
from kivy.config import Config
from kivy.properties import ObjectProperty
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.popup import Popup
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.uix.textinput import TextInput
from kivy.factory import Factory

我是kivy的初学者。

Answer 1

你还需要在 kv 中导入 Factory。
将以下行添加到 .kv 文件的顶部：

#:import Factory kivy.factory.Factory