What is the best way to play audio AFTER a screen is mounted?

[jessebot]

Hi Textual friends and community!

Currently, if I use the playsound library to play audio on mount, it plays the audio before displaying any widgets on the screen. Is there a better event to wait for all widgets to be displayed before playing a sound?

Here's a brief example of my troubles:

pyproject.toml deps

[tool.poetry.dependencies]
python        = ">=3.11,<4.0"
textual       = "^0.56"
playsound     = {git = "https://github.com/taconi/playsound"}
pyfiglet      = "^1.0"

from playsound import playsound
from pyfiglet import Figlet
from textual.app import App, ComposeResult
from textual.containers import Grid
from textual.widgets import Label

class BaseApp(App):

    def compose(self) -> ComposeResult:
        with Grid(id="base-screen-container"):
            yield Label(Figlet(font="standard").renderText("reminder"))

    def on_mount(self) -> None:
        playsound("./snackaroo_jenny.mp3")


if __name__ == "__main__":
    app = BaseApp()
    app.run()

Here's the audio file I was using to test: snackaroo_jenny.mp3.gz

Thanks for any help you can give 🙏

[davep]

Presumably this library you mention will be playing the sound in a way that is blocking for the application. You'll need to come up with some way of playing it in the background; maybe threaded workers will help you here.

[jessebot]

That did it! Thank you again, @davep 🙏

For anyone curious, this is the final working example based on the example above:

from playsound import playsound
from pyfiglet import Figlet
from textual import work
from textual.app import App, ComposeResult
from textual.containers import Grid
from textual.widgets import Label


class BaseApp(App):

    def compose(self) -> ComposeResult:
        with Grid(id="base-screen-container"):
            yield Label(Figlet(font="standard").renderText("reminder"))

    def on_mount(self) -> None:
        self.play_sound()

    @work(exclusive=True, thread=True)
    def play_sound(self) -> None:
        playsound("./snackaroo_jenny.mp3")


if __name__ == "__main__":
    app = BaseApp()
    app.run()