如何为python制作简单的Hello World c模块？

#include <Python.h>

static PyObject* hello_world(PyObject* self, PyObject* args) {
    printf("Hello World from C!\n");
    Py_RETURN_NONE;
}

static PyMethodDef hello_methods[] = {
    {"hello", hello_world, METH_NOARGS, "Prints 'Hello World' from C"},
    {NULL, NULL, 0, NULL}
};

static struct PyModuleDef hellomodule = {
    PyModuleDef_HEAD_INIT,
    "hello",
    NULL,
    -1,
    hello_methods
};

PyMODINIT_FUNC PyInit_hello(void) {
    return PyModule_Create(&hellomodule);
}

gcc -shared -o hello.so hello.c -I /usr/include/python3.x

import hello

hello.hello()