Dear Remi,

         I ran those commands you suggested in lava shell and it printed as below :

      

Python 3.5.3 (default, Jan 19 2017, 14:11:04)

[GCC 6.3.0 20170118] on linux

Type "help", "copyright", "credits" or "license" for more information.

(InteractiveConsole)

>>> from django.contrib.sites.models import Site

>>> Site.objects.all()

<QuerySet [<Site: 192.168.100.103>]>

>>> Site.objects.count()

1

>>>