I purified a method to reproduce my issue, just create a python file e.g. test containing: from celery import Celery def handler(session, args): pass in the cli go for a python test, this gives a: 2014-03-05 13:54:55.009293 [NOTICE] mod_python.c:212 Invoking py module: test 2014-03-05 13:54:55.009293 [ERR] mod_python.c:239 Error reloading module 2014-03-05 13:54:55.009293 [ERR] mod_python.c:164 Python Error by calling script "test": <type 'exceptions.AttributeError'> Message: 'module' object has no attribute 'argv' Exception: None Traceback (most recent call last) File: "/usr/local/freeswitch/scripts/test.py", line 1, in <module> File: "/usr/local/lib/python2.7/dist-packages/celery/__init__.py", line 106, in <module> Thx! -- davy van de moere