Exception AssertionError: AssertionError() in <Finalize object, dead> ignored

[stamparm]

Due to a (gc <-> multiprocessing) bug [1][2] in Python in rare cases multiprocessing throws assertation errors. Dirty patch is to temporary disable garbage collection during multiprocessing run [3][4]

References:
[1] http://bugs.python.org/issue14548
[2] https://github.com/pelletier/django-parallelized_querysets
[3] http://bugs.python.org/file25180/mp_disable_gc.patch
[4] http://docs.python.org/release/2.6.7/library/multiprocessing.html