Pagination Django Python

gistfile1.txt

import math

PAGINATE_BY = 9
ALL_PAGES = 'all pages'


def paginator(page, data_objects, objects_count=None):
    paginate = PAGINATE_BY
    page = int(page)
    next = PAGINATE_BY * page
    previous = next - PAGINATE_BY
    num_pages = int(math.ceil(objects_count / float(PAGINATE_BY))) # 7

    data = {'number': page,
            'num_pages': num_pages,
            'page_range': [page for page in xrange(1, num_pages + 1)]}
    FIRST_PAGE = 1
    LAST_PAGE = num_pages
    if data['number'] == FIRST_PAGE:
        data['has_next'] = True
        data['has_previous'] = False
        data['next_page_number'] = data['number'] + 1
        data['data'] = data_objects[:PAGINATE_BY]
    elif data['number'] == LAST_PAGE:
        data['data'] = data_objects[previous:next]
        data['has_next'] = False
        data['has_previous'] = True
        data['previous_page_number'] = data['number'] - 1
    else:
        data['data'] = data_objects[previous:next]
        data['has_next'] = True
        data['has_previous'] = True
        data['next_page_number'] = data['number'] + 1
        data['previous_page_number'] = data['number'] - 1
    return data


{% if articles.num_pages != 0 %}
<div class="pagination post-item-quant">
    <div class="post-item-quant-body">
        {% if articles.has_previous %}
            <div class="post-item-like" >
            <a href="?page={{ articles.previous_page_number }}">
                <button style="float: left !important;">
                    Previous page
                </button></a>
            </div>
        {% endif %}

        {% for index in articles.page_range %}
            {% if articles.number == index %}
                <div class="post-item-like">
                    <button disabled="disabled" style="padding: 0px 16px 0px 16px; margin-left: 2px; margin-right: 2px; background-color: #6a7277">
                        {{ articles.number }}
                    </button>
                </div>
            {% else %}
                <div class="post-item-like">
                    <a href="?page={{ index }}">
                        <button style="padding: 0px 16px 0px 16px; margin-left: 2px; margin-right: 2px;">
                            {{ index }}
                        </button>
                    </a>
                </div>
            {% endif %}
        {% endfor %}

        {% if articles.has_next %}
            <div class="post-item-like">
            <a href="?page={{ articles.next_page_number }}">
                <button style="float: right !important;">
                    Next page
                </button></a>
            </div>
        {% endif %}
    </div>
</div>
{% endif %}