Как мне взять текст с textinput в этом коде?

Question

[sakair]

Я не знаю как мне брать с textinput текст, textinput находятся в классе.
main.py:

import json
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.lang.builder import Builder
from kivy.uix.screenmanager import ScreenManager, Screen

class MainWin(Widget):
    pass
class Raaspisanie(App):
    def build(self):
        self.icon = "AS.jpg"
        return Builder.load_file('style.kv')
    def screen(self, x):
        self.root.current = x
    def save(self):
        try:
            mass = self.root.ids.one.text
            #mass = {"1": self.root.ids.one.text, "2": self.root.ids.two.text, "3": self.root.ids.thee.text,"4": self.root.ids.four.text,"5": self.root.ids.five.text,"6": self.root.ids.six.text, "7": self.root.ids.seven.text, "8": self.root.ids.vos.text}
            print(mass)
        except:
            print("Сломалось")
if __name__ == '__main__':
    Raaspisanie().run()

style.kv:

<MainWin>: 
    BoxLayout:
        size: root.width, root.height
        orientation: 'vertical' 
        #-----------------------------#
        TextInput:
            id: one
            hint_text: "1 Урок"
            text: ""
            hint_text_color: 1,1,1,1
            multiline: False
            font_size: 20
            background_color: 1,1,1,0.3
            size_hint: 1, 0.1
        #-----------------------------#
        TextInput:
            id: two
            hint_text: "2 Урок"
            hint_text_color: 1,1,1,1
            multiline: False
            font_size: 20
            background_color: 1,1,1,0.3
            size_hint: 1, 0.1
        #-----------------------------#
        TextInput:
            id: thee
            hint_text: "3 Урок"
            hint_text_color: 1,1,1,1
            multiline: False
            font_size: 20
            background_color: 1,1,1,0.3
            size_hint: 1, 0.1
        #-----------------------------#
        TextInput:
            id: four
            hint_text: "4 Урок"
            hint_text_color: 1,1,1,1
            multiline: False
            font_size: 20
            background_color: 1,1,1,0.3
            size_hint: 1, 0.1
        #-----------------------------#
        TextInput:
            id: five
            hint_text: "5 Урок"
            hint_text_color: 1,1,1,1
            multiline: False
            font_size: 20
            background_color: 1,1,1,0.3
            size_hint: 1, 0.1
        #-----------------------------#
        TextInput:
            id: six
            hint_text: "6 Урок"
            hint_text_color: 1,1,1,1
            multiline: False
            font_size: 20
            background_color: 1,1,1,0.3
            size_hint: 1, 0.1
        #-----------------------------#
        TextInput:
            id: seven
            hint_text: "7 Урок"
            hint_text_color: 1,1,1,1
            multiline: False
            font_size: 20
            background_color: 1,1,1,0.3
            size_hint: 1, 0.1
        #-----------------------------#
        TextInput:
            id: vos
            hint_text: "8 Урок"
            hint_text_color: 1,1,1,1
            multiline: False
            font_size: 20
            background_color: 1,1,1,0.3
            size_hint: 1, 0.1
        Button:
            text: "Сохранить"
            background_color: 0,0.7,0.3,1
            size_hint: 1, 0.2
            on_press:
                app.save()
            on_release:
                app.screen("main")
        
ScreenManager:
    Screen:
        name: "main"
        Button:
            text: "Составить расписание"
            size_hint: 1, 0.2
            font_size: 40
            background_color: 1324/255, 255/255, 106/255
        GridLayout:
            id: box
            cols: 3
            size_hint: 1, 0.8
            pos_hint: {'top': 1}
            Button:
                size_hint: 0.2,0.2
                text: "Понедельник"
                font_size: 30
                background_color: 0,0.7,0.4,1
                on_release:
                    app.screen("p")
            Button:
                size_hint: 0.2,0.2
                text: "Вторник"
                font_size: 30
                background_color: 0,0.7,0.4,1
                on_release:
                    app.screen("v")
            Button:
                size_hint: 0.2,0.2
                text: "Среда"
                font_size: 30
                background_color: 0,0.7,0.4,1
                on_release:
                    app.screen("sr")
            Button:
                size_hint: 0.2,0.2
                text: "Четверг"
                font_size: 30
                background_color: 0,0.7,0.4,1
                on_release:
                    app.screen("c")
            Button:
                size_hint: 0.2,0.2
                text: "Пятница"
                font_size: 30
                background_color: 0,0.7,0.4,1
                on_release:
                    app.screen("pi")
            Button:
                size_hint: 0.2,0.2
                text: "Суббота"
                font_size: 30
                background_color: 0,0.7,0.4,1
                on_release:
                    app.screen("s")
    Screen:
        name: "p"
        MainWin:
    Screen:
        name: "v"
        MainWin:
    Screen:
        name: "sr"
        MainWin:
    Screen:
        name: "c"
        MainWin:
    Screen:
        name: "pi"
        MainWin:
    Screen:
        name: "s"
        MainWin:

Помогите пожалуйста.