One of these things that I couldn't remember how to do when away from Django for a while.

getting_site_in_Django.ipynb

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     "input": [
      "from django.contrib.sites.models import Site\n",
      "Site.objects.get_current().domain"
     ],
     "language": "python",
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     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 3,
       "text": [
        "u'localhost:8000'"
       ]
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