Question

I am beginner.I’m running a task in Celery and getting this strange error

maximum recursion depth exceeded while calling a Python object

You can check the full error in this pastebin

I don’t quite understand because I haven’t change anything and yesterday it was working fine. I ran the task without celery in the python interpreter and it runs fine. You can check the function here. Finally, for what it is worth, this task is getting created 12 times by an other task.

Do you see anything that could create such an error?

EDIT:

This is the task I call this function / task

@celery.task(ignore_result=True)
def get_classicdata(leagueid):
    print "getting team data for %s"%leagueid
    returned_data = {}
    for team in r.smembers('league:%s'%leagueid):
        data = scrapteam.delay(team,r.get('currentgw'))
        returned_data[team] = data.get()

Answer 1

Everything looks fine. The traceback implies that the returned object somewhere cannot be pickled, but your returned ‘team’ data structure is a dictionary containing a non-recursive data structure of basic types, so that can’t cause a problem. For better remote debugging, please put a print statement before the “return team”, so that it shows the content of the team. You might also try just having it return a {} and see if that changes thing.

Then also add a debugging print statement in get_classicdata showing the content of data.get(), as well as something just before the return there, in order to verify if that function reaches completion.