我想知道如何从我的应用程序中存储数据，以便在重新运行应用程序时查看数据。
e、 我在textinput中键入一些信息，然后单击submit按钮，这些信息就会粘贴到标签中，因此我关闭了应用程序，当我重新打开它时，这些信息应该会出现在标签中。我知道有sqlite3和mysql，但我不知道如何将其应用到python/kivy代码中。
请任何人告诉我怎么做。
如果可以举个例子，那就太完美了。
提前谢谢，
我的密码：

from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.lang import Builder
from random import shuffle
from kivy.core.window import Window
Window.clearcolor = [1, 1, 1, 1]
Window.size = (550, 650)

Builder.load_file('builder.kv')

class MainScreen(ScreenManager):
    pass

class Menu(Screen):
    pass

class Levels(Screen):
    def __init__(self,**kwargs):
        super().__init__(**kwargs)

    def on_pre_enter(self):
        Window.bind(on_keyboard=self.voltar)

    def voltar(self, window, key, *args):
        if key == 27:
            App.get_running_app().root.current = 'menu'
            return True

    def on_pre_leave(self):
        Window.unbind(on_keyboard=self.voltar)

class LvLogos(Screen):
    def on_pre_enter(self):
        Window.bind(on_keyboard=self.voltar)

    def voltar(self, window, key, *args):
        if key == 27:
            App.get_running_app().root.current = 'menu'
            return True

    def on_pre_leave(self):
        Window.unbind(on_keyboard=self.voltar)

class Logo(Screen):
    def __init__(self,**kwargs):
        super().__init__(**kwargs)

    def shuffle(self):
        letter = self.letters
        self.s = shuffle(letter)
        return letter

    def on_pre_enter(self):
        Window.bind(on_keyboard=self.voltar)

    def voltar(self, window, key, *args):
        if key == 27:
            App.get_running_app().root.current = 'menu'
            return True

    def on_pre_leave(self):
        Window.unbind(on_keyboard=self.voltar)

class LvShields(Screen):
    pass

class Shield(Screen):
    def __init__(self,**kwargs):
        super().__init__(**kwargs)

    def shuffle(self):
        letter = self.letters
        self.s = shuffle(letter)
        return letter

class QuizZApp(App):
    def build(self):
        self.icon = 'C:\\Users\\gusta\\PycharmProjects\\QuizzApp\\Images\\QuizzLogo.png'
        return MainScreen()

if __name__ == '__main__':
    QuizZApp().run()