Embedding Python thread safe

I'm trying to use Python in a module for an analysis software of vehicle bus systems. For this I have to embed Python in a thread safe manner, since there can be multiple instances of the module witch work independently. I could use a mutex to guard all access to Python and create an unique (python) modul开发者_Go百科e for every thread. Obviously this is the easiest way out but comes with the price of not being able to scale across multiple cores. Or I could modify my module to spawn new processes which intern uses Python and connect to them via shared memory. This gives me a performance penalty and costs more time to implement but scales great.

My question: witch one do you think makes more sense? Is there any other way to embed Python thread safe or even in a way that scales over multiple cores.

Kind regards Moritz

edit: I'm using CPython

If you're CPU bound, Python can only scale to multiple core using the multiprocessing library. However, if you're I/O bound, then threading is usually sufficient.

If you want easy thread safety, then use Queue for all message passing.

To follow-up on my question: I went ahead in implemented it using Processes with intern use Python. A good text why the multiprocessing library does not help can be found here: http://pkaudio.blogspot.com/2010/04/whey-multiprocessing-doesnt-always-work.html It was not written by myself but that guy has the same problem as I have. I'm thankful for everybody who tried to help me.