✨ Code for testing Textualize/textual#3615

work_command.py

@@ -0,0 +1,33 @@
+"""https://github.com/Textualize/textual/issues/3615"""
+
+import asyncio
+from textual import work
+from textual.app import App, ComposeResult
+from textual.widgets import RichLog
+
+class Test(App):
+    CSS = '''
+    RichLog {
+        height: 100%;
+    }
+    '''
+    def compose(self) -> ComposeResult:
+        yield RichLog(id = 'log')
+
+    def on_mount(self) -> None:
+        self.my_worker()
+
+    @work(exclusive=True, group="foo")
+    async def my_worker(self):
+        counter = 1
+
+        log = self.query_one('#log', RichLog)
+        while True:
+            log.write(f'test {counter}')
+            counter += 1
+            await asyncio.sleep(1)
+
+if __name__ == "__main__":
+    Test().run()
+
+### work_command.py ends here