Davin Potts added the comment:
Expanding my above example to show how multiprocessing relates:
>>> import multiprocessing
>>> import os
>>> class Floof(object):
... def __new__(cls):
... print("New via pid=%d" % os.getpid())
... return object.__new__(cls)
...
>>> os.getpid() # parent pid
46560
>>> pool = multiprocessing.Pool(1)
>>> getter = pool.apply_async(Floof, (), {}) # output seen from child AND
>>> parent
>>> New via pid=46583
New via pid=46560
>>> getter.get() # everything seems to be working
>>> as intended
<__main__.Floof object at 0x10866f250>
FWIW, near the end of my prior message: s/it didn't merely/it merely/
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<http://bugs.python.org/issue30018>
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