What's wrong with celery_self?

Question

Flask

I don't understand why it works for me like this

@celery.task(bind=True)
def task_first():
    pass

And I have many such tasks.
But suddenly I decided to add another queue and a new task

@celery.task(bind=True)
def task_second():
    pass

And on you

missing 1 required positional argument: 'celery_self'

And now at least add, at least Bind=True, at least Bind=False, at least without it, it gives the above error, but only on a new task.
How to understand?

Answer 1

Correctly, if bind=True is already specified, then it is assumed that your task will use an instance task, which means that the function receives self as the first argument. It is very strange that it worked differently for you, maybe there were some decorators?
According to the docs, this is how it should work.

@celery.task(bind=True)
def task_first(self):
    pass


@celery.task()
def task_second():
    pass