I keep getting a black screen when I run this

import kivy
from kivy.app import App
from kivy.uix.gridlayout import GridLayout
from kivy.uix.label import Label
from kivy.uix.textinput import TextInput
from kivy.uix.button import Button

class childApp(GridLayout):
    def __int__(self,**kwargs):
        #**kwargs is so we can implement alot of arugments for the function
        super(childAPP, self).__init__()
        #super is used to give access to the methods of a parent class
        self.cols = 2
        self.add_widget (Label(text = "Player Name"))
        self.s_name = TextInput()
        self.add_widget (self.s_name)
        self.background_color = Color(1,1,1)

class parentApp(App):
    def build(self):
        return childApp()

if __name__ == "__main__":
    parentApp().run()

I am reading the learn-python3 the hard way book online, I am side tracking a little bit trying to just test out something with kivy, I want to make a simple app.

When I run this I get a black screen but no errors.

#let me know if anyone has any tips. Im way in over my head.

No clue why black screen and no errors.
Are you running it in python in powershell or a virtual environment?

https://kivy.org/doc/stable/installation/installation-windows.html#start-a-kivy-application

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