text: from kivy.app import App
  from kivy.base import stopTouchApp
  from kivy.factory import Factory
  from kivy.uix.label import Label
  from kivy.uix.widget import Widget
  from kivy.uix.boxlayout import BoxLayout
  from kivy.uix.gridlayout import GridLayout
  from kivy.uix.button import Button
  from kivy.graphics import Ellipse, Color, Rectangle
  from kivy.properties import ObjectProperty, NumericProperty, ListProperty,BooleanProperty
  from kivy.clock import Clock, ClockBaseInterrupt
  from random import random, randrange
  from kivy.uix.popup import Popup
  from kivy.uix.textinput import TextInput
  from kivy.app import stopTouchApp
  from kivy.core.window import Window
  from kivy.uix.scrollview import ScrollView