pybind11sigsegv.cpp

#include <pybind11/pybind11.h>
#include <stdexcept>

void func() {
  // NOTE: If Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS are not commented out, calling "func" exits with SIGSEGV.
  
  // Py_BEGIN_ALLOW_THREADS
  throw std::logic_error("an exception occurred");
  // Py_END_ALLOW_THREADS
}

PYBIND11_MODULE(example, m) {
  m.doc() = "Example pybind11"; // optional module docstring
  m.def("func", func, "throw exception");
}

g++ -O3 -Wall -shared -std=c++11 -fPIC `python3 -m pybind11 --includes` example.cpp -o example`python3-config --extension-suffix`