Python -> C++ -> Python Again

[stellarpower]

Hi,

I've got some really weird segfaults going on that are sporadic and I'm struggling to reproduce.

To start with, I was wondering, is it legal for me to be calling into C++ from Python, and then within that C++ code, call back into Python again? I have been doing so for some time without any problems, but I wanted to check first. I am also finding that when I try to get hold of a Python type within that code, as I have done before, instead I get back some "FramesList" type, - when I expose this as a property and access from Python, it also seems to have a backtrace that goes beyond the point it was assigned in C++. If it is legal, I'm not sure if there's some horrible GIL problem with my debugger thrown into the mix.

Cheers

[stellarpower]

Actually I'm now wondering if it's to do with reference-counting. Is it safe to hold onto a pybind11::object within a C++ class?