#include <Python.h>
#include <stdio.h>
#include <iostream>
struct PyLockGIL
{

    PyLockGIL(): gstate(PyGILState_Ensure())
    {
        std::cout << "construct GIL" << std::endl;
    }

    ~PyLockGIL()
    {
        PyGILState_Release(gstate);
        std::cout << "destruct GIL" << std::endl;
    }

    PyLockGIL(const PyLockGIL&) = delete;
    PyLockGIL& operator=(const PyLockGIL&) = delete;

    PyGILState_STATE gstate;
};