An offical example of embedding Python in C + an unofficial Makefile

Makefile

run: pt
	./pt

pt: printime.c
	cc `python3-config --cflags` -o $@ $^ `python3-config --ldflags --embed`

clear:
	rm -f pt

printime.c

// src: https://docs.python.org/dev/extending/embedding.html#very-high-level-embedding

#define PY_SSIZE_T_CLEAN
#include <Python.h>

int
main(int argc, char *argv[])
{
    wchar_t *program = Py_DecodeLocale(argv[0], NULL);
    if (program == NULL) {
        fprintf(stderr, "Fatal error: cannot decode argv[0]\n");
        exit(1);
    }
    Py_SetProgramName(program);  /* optional but recommended */
    Py_Initialize();
    PyRun_SimpleString("from time import time,ctime\n"
                       "print('Today is', ctime(time()))\n");
    if (Py_FinalizeEx() < 0) {
        exit(120);
    }
    PyMem_RawFree(program);
    return 0;
}

ref:

• https://stackoverflow.com/a/27672776/16942208
• https://docs.python.org/dev/extending/embedding.html#compiling-and-linking-under-unix-like-systems