SyntaxWarning: invalid escape sequence '\*'

[titovanton]

Hello,

here is my stack:

• python 3.12
• celery 5.4.0
• celery-once 3.0.1
• django 4.2.17 # if it does matter at all

Here is the basic task I made:

from time import sleep

from celery_once import QueueOnce  # type: ignore

from background.celery import celery_app


@celery_app.task(base=QueueOnce)
def add(x: int, y: int) -> int:
    sleep(20)
    return x + y

When I go to shell by ./manage.py shell and simply import the task, I get the following:

Python 3.12.8 (main, Dec  4 2024, 20:39:59) [GCC 12.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from users.tasks import add
/usr/local/lib/python3.12/site-packages/celery_once/tasks.py:78: SyntaxWarning: invalid escape sequence '\*'
  """

Thanks!