24_modal_screens.py

from textual.app import App
from textual.screen import ModalScreen
from textual.widgets import Button, Label


class MyModalScreen(ModalScreen):
    def compose(self):
        yield Label("My modal screen")
        yield Button("Exit")


class MyApp(App):
    def compose(self):
        yield Button("Push modal!")

    def on_button_pressed(self):
        self.push_screen(MyModalScreen())


MyApp().run()