Kivy: does not display the widget, what should I do?

Question

Python

python 3.7
kivy 1.11.1
Windows 10 Pro 64x
Simple program:

from kivy.app import App
from kivy.uix.button import Button

class MyApp(App):
    def build(self):
        return Button(text = "Hello World")

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

There are no errors in the command line, but the result is just a black screen, no buttons, etc.


What to do?

Answer 1

update viduhi driver