Django Неправильно настроенное исключение при запуске проекта

Question

Когда я выполняю проект Django python, я получаю следующее исключение.

   % (desc, ENVIRONMENT_VARIABLE))
   django.core.exceptions.ImproperlyConfigured: Requested setting 
   EXTENSIONS_MAX_UNIQUE_QUERY_ATTEMPTS, but settings are not configured. You must either 
   define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() 
   before accessing settings.

summary.py

from __future__ import absolute_import
from __future__ import division, print_function, unicode_literals

import os

from sumy.parsers.html import HtmlParser
from sumy.parsers.plaintext import PlaintextParser
from sumy.nlp.tokenizers import Tokenizer
from sumy.summarizers.lsa import LsaSummarizer as Summarizer
from sumy.nlp.stemmers import Stemmer
from sumy.utils import get_stop_words

from applications.news_crawl.models import Details

LANGUAGE = "english"
SENTENCES_COUNT = 10


if __name__ == "__main__":

 dd = Details.objects.all()
 url = dd.page_url

 parser = HtmlParser.from_url(url, Tokenizer(LANGUAGE))

 stemmer = Stemmer(LANGUAGE)

 summarizer = Summarizer(stemmer)
 summarizer.stop_words = get_stop_words(LANGUAGE)

for sentence in summarizer(parser.document, SENTENCES_COUNT):
    print(sentence)