%typemap(argout) bool &success {
    PyObject *o, *o2, *o3;
    o = PyBool_FromLong(*$1);
    if ((!$result) || ($result == Py_None)) {
        $result = o;
    } else {
        if (!PyTuple_Check($result)) {
            PyObject *o2 = $result;
            $result = PyTuple_New(1);
            PyTuple_SetItem($result,0,o2);
        }
        o3 = PyTuple_New(2);
        PyTuple_SetItem(o3,0,o);
        PyTuple_SetItem(o3,1,$result);
        $result = o3;
    }
}

%typemap(in,numinputs=0) bool &success(bool temp) {
    $1 = &temp;
}

// bytearrays are new as of 2.6
%{
#if (PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION >= 6) || PY_MAJOR_VERSION > 2
#define MODERN_PYTHON
#endif
%}

// abac_chunk_t is a bytearray or a string
%typemap(in) abac_chunk_t %{
#ifdef MODERN_PYTHON
    $1.ptr = (unsigned char *)PyByteArray_AS_STRING($input);
    $1.len = PyByteArray_GET_SIZE($input);
#else
    PyString_AsStringAndSize(
        $input,
        (char **)&$1.ptr,
        &$1.len
    );
#endif
%}

%typemap(out) abac_chunk_t %{
#ifdef MODERN_PYTHON
    $result = PyByteArray_FromStringAndSize(
        (const char *)$1.ptr,
        $1.len
    );
#else
    $result = PyString_FromStringAndSize(
        (const char *)$1.ptr,
        $1.len
    );
#endif
%}