combine3d issue

[tjtrent]

I have just downloaded Pycles and successfully run the StableBubble example. Looking through the directory I noticed the post-processing directory in which I ran setup.py script. When I then used the combine3d.py script I get the following error:
AttributeError: 'module' object has no attribute 'to_3d'
I'm not sure what the issue is here, is it meant to call combine3d.c? It is possible that it is calling itself at the top of the combine.py script.

After running the setup.py script i have the following item in the PostProcessing directory:
build/ combine3d.c combine3d.py combine3d.pyc combine3d.pyx setup.py

Any help greatly appreciated. Thanks
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This issue is now resolved. The re was an issue with the python byte code file, when I deleted it and reran the setup.py script everthing worked fine.