@Override public int __cmp__(final PyObject other) {
        final boolean debug_this = false;
        if (!(other instanceof PyMultiarray)) { return -2; }
        final PyMultiarray o = (PyMultiarray) other;
        if (debug_this) {
            System.out.println("__cmp__() passed '"
                    + other.getClass().getName()
                    + "' object with typecode '" + o.typecode() + "': " + o);
            System.out.println("Comparing with this: '"
                    + this.getClass().getName() + "' " + this);
        }
        throw Py.TypeError("Comparison of multiarray objects is not implemented.");
    }