Of course once you master it, you separate the code from the html and call it from the view like this:

hello.nxt

    name = request.get('name','world')
    list = ['this','language','rocks']
    response.render('hello.html',name,list)

    <h1>Hello {{ name.upper }}</h1>
    <ul>
    {% for item in list %}
        <li>{{ item }}</li>
    {% endfor %}
    </ul>