Function _subscript_by_index

numpy/core/src/multiarray/descriptor.c:3520–3533

}

static PyObject *
_subscript_by_index(PyArray_Descr *self, Py_ssize_t i)
{
    PyObject *name = PySequence_GetItem(self->names, i);
    PyObject *ret;
    if (name == NULL) {
        PyErr_Format(PyExc_IndexError,
                     "Field index %zd out of range.", i);
        return NULL;
    }
    ret = _subscript_by_name(self, name);
    Py_DECREF(name);
    return ret;
}

static npy_bool
_is_list_of_strings(PyObject *obj)