Method next

tests/test_sequences_and_iterators.cpp:508–512

        PySequenceIterator(const Sequence &seq, py::object ref) : seq(seq), ref(ref) { }

        float next() {
            if (index == seq.size())
                throw py::stop_iteration();
            return seq[index++];
        }

        const Sequence &seq;
        py::object ref; // keep a reference