static PyObject *module_score(PyObject *self, PyObject *args) {
    int i, size, value, *gene;
    PyObject *seq, *data;

    /* Parse the input tuple */
    if (!PyArg_ParseTuple(args, "O", &data))
        return NULL;
    seq = PySequence_Fast(data, "expected a sequence");
    size = PySequence_Size(seq);

    gene = (int*) PyMem_Malloc(size * sizeof(int));
    for (i = 0; i < size; i++)
        gene[i] = PyInt_AsLong(PySequence_Fast_GET_ITEM(seq, i));

    /* Call the external C function*/
    value = score(gene, size);

    PyMem_Free(gene);

    /* Build the output tuple */
    PyObject *ret = Py_BuildValue("i", value);
    return ret;
}