About listing background tasks

Anvil Q&A
1

I am playing with background task and I have noticed a two little problems with the function anvil.server.list_background_tasks():

  • I was not able to find any documentation, other than this little paragraph
  • The all_environments=True argument described in that paragraph seems to have no effect. The following code shows a long list when running on its own window, shows nothing when running in the IDE:
@anvil.server.callable
def show_tasks():
  n = 0
  rows = ['List of tasks:']
  for task in anvil.server.list_background_tasks(all_environments=True):
    n += 1
    rows.append(f'{task.get_task_name()} - {task.get_termination_status() or "running"}')
  rows.append(f'Total tasks: {n}')
  return '\n'.join(rows)