main.py

from kivy.lang import Builder
from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.gridlayout import GridLayout
from kivy.uix.scrollview import ScrollView
from kivy.uix.label import Label
from kivy.clock import Clock

class TestApp(App):
    def set_scroll_y(self, instance, value):
        self.parem_kast.scroll_y = value
 
    def build(self):
        self.box = BoxLayout()
        # kanalid = BoxLayout()
        self.vasak_kast = ScrollView(size_hint = (None,1), size_x=150)
        self.parem_kast = ScrollView()
 
        self.grid_vasak = GridLayout(size_hint = (1,3), cols=1)
        self.grid_parem = GridLayout(size_hint = (1,3), cols=1)
 
        self.box.add_widget(self.vasak_kast)
        self.box.add_widget(self.parem_kast)
        self.vasak_kast.add_widget(self.grid_vasak)
        self.parem_kast.add_widget(self.grid_parem)
        self.grid_vasak.add_widget(Label(text='Logod'))
        self.grid_parem.add_widget(Label(text='Kanalid'))
        self.vasak_kast.bind(scroll_y=self.set_scroll_y)
 
        for i in range(20):
            self.grid_parem.add_widget(Button(text='kanal %s'%i))
        for i in range(20):
            self.grid_vasak.add_widget(Button(text='Pilt %s'%i))

        return self.box




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