Textual multiple workers

app.py

import asyncio

from textual import work
from textual.app import App
from textual.widgets import Button, TextLog


class WorkIt(App):
    def compose(self):
        yield Button("run_worker", id="run_worker")
        yield Button("decorators", id="decorators")
        yield TextLog()

    def on_button_pressed(self, event):
        match event.button.id:
            case "run_worker":
                self.run_worker(self.task1())
                self.run_worker(self.task2())
            case "decorators":
                self.task3()
                self.task4()

    async def task1(self):
        text_log = self.query_one(TextLog)
        while True:
            text_log.write("Hello from task 1")
            await asyncio.sleep(1)

    async def task2(self):
        text_log = self.query_one(TextLog)
        while True:
            text_log.write("Hello from task 2")
            await asyncio.sleep(1)

    @work(exclusive=True)
    async def task3(self):
        text_log = self.query_one(TextLog)
        while True:
            text_log.write("Hello from task 3")
            await asyncio.sleep(1)

    @work(exclusive=True)
    async def task4(self):
        text_log = self.query_one(TextLog)
        while True:
            text_log.write("Hello from task 4")
            await asyncio.sleep(1)


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