PyStructSequence usage example

setup.py

# coding=utf8

from distutils.core import setup, Extension

setup(name             = "foo",
      version          = "0.0.1",
      author           = "Saúl Ibarra Corretgé",
      author_email     = "saghul@gmail.com",
      description      = "PyStructSequence example",
      ext_modules      = [Extension('foo',
                                sources = ['test_pystructsequence.c'],
                         )]
     )

test_pystructsequence.c

#include "Python.h"
#include "structmember.h"
#include "structseq.h"

static PyTypeObject FooResultType = {0, 0, 0, 0, 0, 0};

static PyStructSequence_Field foo_result_fields[] = {
    {"field_1", "This is field 1"},
    {"field_2", "This is field 2"},
    {"field_3", "This is field 3"},
    {NULL}
};

static PyStructSequence_Desc foo_result_desc = {
    "foo_result",
    NULL,
    foo_result_fields,
    3
};


PyMODINIT_FUNC
initfoo(void)
{
    PyObject *foo = Py_InitModule("foo", NULL);

    if (FooResultType.tp_name == 0)
        PyStructSequence_InitType(&FooResultType, &foo_result_desc);
    Py_INCREF((PyObject *) &FooResultType);
    PyModule_AddObject(foo, "foo_result", (PyObject *) &FooResultType);
}