import gi

gi.require_version('Gtk', '4.0')
from gi.repository import Gtk


def on_activate(app):
    # Create window
    win = Gtk.ApplicationWindow(application=app)
    win.present()


# Create a new application
app = Gtk.Application(application_id='com.example.App')
app.connect('activate', on_activate)

# Run the application
app.run(None)
