[Python-Dev] Free threading

[Tim Peters]

[Guido]
> ...
> Anyway, I don't see the point: if you want two 100% independent
> interpreters, you can get that easily by forking two separate
> processes.  That's what separate processes are *for*...

So what is it that multiple interpreters within a single process *are* for?
I'm comfortable with threads, and comfortable with processes, but multiple
interpreters not-really-sharing yet not-really-isolated seem mostly an
opportunity to track down subtle bugs <wink>.