Hi All, I'm trying to upgrade the pydevd debugger to the latest version of CPython (3.8), however I'm having some issues being able to access `PyInterpreterState.eval_frame` when compiling, so, I'd like to ask if someone can point me in the right direction. What I'm trying to do is compile something like: #include "pystate.h" ... PyThreadState *ts = PyThreadState_Get(); PyInterpreterState *interp = ts->interp; interp->eval_frame = my_frame_eval_func; and the error I'm having is: _pydevd_frame_eval/pydevd_frame_evaluator.c(7534): error C2037: left of 'eval_frame' specifies undefined struct/union '_is' So, it seems that now "pystate.h" only has a forward reference to "_is" and a typedef from " PyInterpreterState" to "_is" and "_is" is defined in "include/internal/pycore_pystate.h", which doesn't seem like I should be including (in fact, if I try to include it I get an error saying that I would need to define Py_BUILD_CORE)... so, can someone point me to the proper way to set the frame evaluation function on CPython 3.8? Thanks, Fabio