#include namespace py = pybind11; PYBIND11_EMBEDDED_MODULE(test_cmake_build, m) { m.def("add", [](int i, int j) { return i + j; }); } int main(int argc, char *argv[]) { if (argc != 2) throw std::runtime_error("Expected test.py file as the first argument"); auto test_py_file = argv[1]; py::scoped_interpreter guard{}; auto m = py::module::import("test_cmake_build"); if (m.attr("add")(1, 2).cast() != 3) throw std::runtime_error("embed.cpp failed"); py::module::import("sys").attr("argv") = py::make_tuple("test.py", "embed.cpp"); py::eval_file(test_py_file, py::globals()); }