saving Python process state for later debugging

Hi!

Is there a way to save the state of a Python process for later
inspection with a debugger? One way to do this is to dump core, but is
the result usable for debugging with pdb (it can be debugged by gdb,
which can inspect PyObjects in a CPython core, for example, but it's
not much fun)?

If there is no way to do this today, are there essential difficulties
in implementing this on top of an OS support for "raw" core dumps?

TIA,
Yossi

.

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