How to Embed Python in C++

#include <iostream>
#include <string>
#include <Python.h>

using namespace std;

int main() {
    Py_Initialize();

    string statements =
        "a = 8\n"
        "b = 2\n"
        "c = (a * b) / 2";

    int retVal = PyRun_SimpleString(statements.c_str());
    if (retVal == 0) {
        PyObject* m = PyImport_AddModule("__main__");
        PyObject* v = PyObject_GetAttrString(m, "c");

        int c = PyInt_AsLong(v);
        cout << "c: " << c << endl;

        Py_DECREF(v);
    }
    Py_Finalize();
    return 0;
}

Output:
c: 8