Good Django Pagination

gistfile1.txt

< Django view >

paginator = Paginator(data['photos'], PAGINATE_BY)
page = request.GET.get('page', 1)
try:
    data['photos'] = paginator.page(page)
except PageNotAnInteger:
    data['photos'] = paginator.page(1)
except EmptyPage:
    data['photos'] = paginator.page(paginator.num_pages)

data['photos'].paginator.show_pages = int(page) + 4

< HTML Template >
{% if photos.has_previous %}
    <a href="?page={{ photos.previous_page_number }}"><button class="btn btn-success mt-2 mb-2">Previous</button></a>
{% endif %}

{% for index in photos.paginator.page_range %}
    {% if photos.number == index %}
        <button class="btn btn-success mt-2 mb-2" disabled="disabled">{{ photos.number }}</button>
    {% else %}

        {% if not index < photos.number and index < photos.paginator.show_pages %}
            <a href="?page={{ index }}"><button class="btn btn-success mt-2 mb-2">{{ index }}</button></a>
        {% endif %}
    {% endif %}
{% endfor %}

{% if photos.paginator.show_pages <= photos.paginator.num_pages %}
    {% if photos.paginator.show_pages < photos.paginator.num_pages %}
        <span>...</span>
    {% endif %}
    <a href="?page={{ photos.paginator.num_pages }}"><button class="btn btn-success mt-2 mb-2">{{ photos.paginator.num_pages }}</button></a>
{% endif %}

{% if photos.has_next %}
    <a href="?page={{ photos.next_page_number }}"><button class="btn btn-success mt-2 mb-2">Next</button></a>
{% endif %}