Example of pagination on Google App Engine which allows going back a page

template.html

<h1>Page 1</h1>
<a href="/myview/?page={{previous_page_number}}">Previous page</a>
<a href="/myview/?page={{next_page_number}}">Next page</a>
{% for object in results %}
    {{object}} {#whatever you're displaying #}
{% endfor %}

views.py

def my_view(request):
    """ View any page of objects. """
    results_per_page = 100
    page_number = request.GET.get('page', 1)
    this_page_cursor_key = "cursor_for_page_%s" % page_number
    next_page_cursor_key = "cursor_for_page_%s" % page_number + 1
    results = MyModel.objects.all()
    if page_number > 1:
        cursor = memcache.get(this_page_cursor_key)
        set_cursor(results, cursor)
    next_page_cursor = get_cursor(results)
    memcache.set(next_page_cursor_key, next_page_cursor)
    template_vars = {
        "results": results,
        "previous_page_number": page_number -1,
        "next_page_number": page_number +1
    }
    return render_to_response("template.html", template_vars)