I'm on linux actually. I found that so long as I implement __reduce__, then pickling works, and my extension works with Queue objects correctly. So far the C Api is really cool. I can do all the math stuff where I need the speed, and still be able to use python which is way more expressive.
travis On Mar 17, 8:43 pm, "Gabriel Genellina" <gagsl-...@yahoo.com.ar> wrote: > En Sun, 15 Mar 2009 01:51:35 -0200, Travis Miller <raph...@gmail.com> > escribió: > > > I am very new to the python C API, and have written a simple type > > called SU2 that has 4 members that are all doubles. Everything seems > > to work fine (can import my module and instantiate the new type and > > act on it with various methods I have defined), except for when I > > attempt to use my new type with multiprocessing.Queue (by the way I am > > working with python 2.6). > > > So when I declare my object instance and call the put() method on the > > Queue instance, the object I get out with the get() method of the same > > Queue instance is not the same object. The four members of the > > object are all coming through as all zeros. Below is the snippet of > > code. > > Are you on Windows? multiprocessing uses pickles to transfer objects > between processes. See if you can dump and load those kind of objects. If > not, you may need to implement __getstate__/__setstate__ or __reduce__ > Seehttp://docs.python.org/library/pickle.html > > -- > Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
