Function PyArray_FieldNames

numpy/core/src/multiarray/scalarapi.c:499–524

NUMPY_API * Return the tuple of ordered field names from a dictionary. */

 * Return the tuple of ordered field names from a dictionary.
 */
NPY_NO_EXPORT PyObject *
PyArray_FieldNames(PyObject *fields)
{
    PyObject *tup;
    PyObject *ret;
    PyObject *_numpy_internal;

    if (!PyDict_Check(fields)) {
        PyErr_SetString(PyExc_TypeError,
                "Fields must be a dictionary");
        return NULL;
    }
    _numpy_internal = PyImport_ImportModule("numpy.core._internal");
    if (_numpy_internal == NULL) {
        return NULL;
    }
    tup = PyObject_CallMethod(_numpy_internal, "_makenames_list", "OO", fields, Py_False);
    Py_DECREF(_numpy_internal);
    if (tup == NULL) {
        return NULL;
    }
    ret = PyTuple_GET_ITEM(tup, 0);
    ret = PySequence_Tuple(ret);
    Py_DECREF(tup);
    return ret;
}

/*NUMPY_API
 * Return descr object from array scalar.