kivy 5 kivy language with python function

#project structure

main.py

tutorial.kv

#main.py

from kivy.uix.boxlayout import BoxLayout

import random

class ScatterTextWidget(BoxLayout):

    def change_label_colour(self, *args):

        colour = [random.random() for i in [0,1,2]] + [1]

        print(colour)

        label = self.ids['label_id']

        label.color = colour

class TutorialApp(App):

    def build(self):

        return ScatterTextWidget()

TutorialApp().run()

---------------------------

tutorial.kv

#:import random random

<ScatterTextWidget>:

    orientation: 'vertical'

    TextInput:

        id: textinput_id

        font_size: 150

        size_hint_y: None

        height: 200

        text: 'default'

        on_text: root.change_label_colour()

        #on_text: label_id.color = [random.random() for i in [0,1,2]] + [1]

    FloatLayout:

        Scatter:

            Label:

                id: label_id

                text: textinput_id.text

                font_size: 150

-----------------

#logs

[0.1348179395731689, 0.24583291893163917, 0.9907235899551307, 1]

[0.2874682150281308, 0.9696246742617654, 0.550108717419674, 1]

reference:

https://www.youtube.com/watch?v=ZmteLworB4E&list=PLdNh1e1kmiPP4YApJm8ENK2yMlwF1_edq&index=5