Widget with @Work: how to self remove?

[jehon]

I have a widget that display the logs of a command. Upon completion, the widget should self-destruct:

class ExecLogWidget(TextLog):
    def __init__(self):
        self.start()
    @work(exclusive=True)
    def start(self) -> None:
            with subprocess.Popen(self.command, stdout=subprocess.PIPE, text=True, universal_newlines=True) as proc:
                if proc.stdout is not None:
                    for stdout_line in proc.stdout:
                        self.write(stdout_line)
            self.write("")
            self.write("[green] ✓ Success")
            time.sleep(5)
            self.remove()

It seems that the self.remove() does not work, because it is in a separated thread, and break the cycle of the main thread:

RuntimeError: no running event loop
sys:1: RuntimeWarning: coroutine 'App._remove_nodes.<locals>.prune_widgets_task' was never awaited
RuntimeWarning: Enable tracemalloc to get the object allocation traceback

I should use "call_from_thread", but I don't have access to the "App" object from inside this widget.

Any idea?

[willmcgugan]

You should be able to get a reference to the app with self.app.

Note that you probably shouldn't call self.start from the initializer. Better to call it from on_mount, to ensure the app and widget are running.

[jehon]

It worked, thanks a lot!