#32850: Sitemap.items() gets called several times: Fix or document?
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               Reporter:  Thomas Güttler  |          Owner:  nobody
                   Type:  Uncategorized   |         Status:  new
              Component:  Uncategorized   |        Version:  3.2
               Severity:  Normal          |       Keywords:
           Triage Stage:  Unreviewed      |      Has patch:  0
    Needs documentation:  0               |    Needs tests:  0
Patch needs improvement:  0               |  Easy pickings:  0
                  UI/UX:  0               |
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 The
 
[https://docs.djangoproject.com/en/3.2/ref/contrib/sitemaps/#django.contrib.sitemaps.Sitemap.items
 Sitemap.items()] method gets called several times.

 This is confusing and might waste computation resources.

 ```
     def _urls(self, page, protocol, domain):
         urls = []
         latest_lastmod = None
         all_items_lastmod = True  # track if all items have a lastmod
         for item in self.paginator.page(page).object_list:
             loc = "%s://%s%s" % (protocol, domain, self.__get('location',
 item))
             ....
 ```

 I see two options now:

 Option1: Document this behaviour.

 Option2: make paginator a cached_property.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/32850>
Django <https://code.djangoproject.com/>
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