Le 09/12/2011 15:00, Robert Kern a écrit :

Using multiprocessing is fine. That starts up multiple interpreters in
*different* processes. Yang is using a non-Python program that embeds
the CPython interpreter and starts up multiple copies of it in the
same process.

Ok, now I think I understand. I was not aware it was possible to embed multiple CPython instances into one process.
So I guess IPython's multiprocessing infrastructure I once briefly considered is also safe since it runs multiple kernels. I'm relieved to hear that !

Thank you very much for the explanation.

Pierre