> The long term goal is to support multiple interpreter instances per process:
> Eric Snow's PEP 554 "Multiple Interpreters in the Stdlib"
> https://www.python.org/dev/peps/pep-0554/
Sorry, but I don't see the relation between this issue and PEP 554. It seems to me that the PEP is about making subinterpreters available from pure Python (instead of only at the C level). It doesn't say anything about the *implementation* of subinterpreters, which is what this issue is about.
So I'm still missing the bigger picture where this issue fits in.
> The current implementation of CPython leaks dozens of *Python* objects at exit.
That may be an issue to be fixed, but again I don't see the relation with this issue.