Django sitemap

# settings.py
INSTALLED_APPS = [
    ...
    'django.contrib.sitemaps',
    ...
]
...

ROBOTS_USE_SITEMAP = True
ROBOTS_SITEMAP_VIEW_NAME = 'main_sitemap'

# app/urls.py
...
from django.contrib.sitemaps import views as sitemap_views

from some_app.sitemap import (
    CategoriesSitemap,
    ProductSitemap
)


sitemaps = {
    'categories': CategoriesSitemap,
    'products': ProductSitemap,
}

urlpatterns = [
    url(
        r'^sitemap\.xml$',
        sitemap_views.index,
        {'sitemaps': sitemaps},
        name='main_sitemap'
    ),
    url(
        r'^sitemap-(?P<section>.+)\.xml$',
        sitemap_views.sitemap,
        {'sitemaps': sitemaps},
        name='django.contrib.sitemaps.views.sitemap'
    ),
    ...
]

# some_app.sitemap.py
from django.contrib.sitemaps import Sitemap

from .models import Product, Categories

__all__ = (
    'ProductSitemap',
    'CategoriesSitemap'
)


class CategoriesSitemap(Sitemap):
    changefreq = "monthly"
    priority = 0.9
    protocol = "https"

    def items(self):
        return Categories.objects.exclude(depth=2)


class ProductSitemap(Sitemap):
    changefreq = "monthly"
    priority = 0.9
    protocol = "https"

    def items(self):
        return Product.objects.filter(variants__amount__gte=1)

    def lastmod(self, obj):
        return obj.updated_at