Is multiprocessing.Manager().dict().setdefault() broken?

Question

The its-late-and-im-probably-stupid department presents:

>>> import multiprocessing
>>> mgr = multiprocessing.Manager()
>>> d = mg         


        

Answer 1

The Manager().dict() is a DictProxy object:

>>> mgr.dict()

>>> type(mgr.dict())

DictProxy is a subclass of the BaseProxy type, which does not behave entirely like a normal dict: http://docs.python.org/library/multiprocessing.html?highlight=multiprocessing#multiprocessing.managers.BaseProxy

So, it seems you have to address the mgr.dict() differently than you would a base dict.