CODEWITHSUNDEEP
djangopython-3.x
ijdev
ijdev

Reputation: 1

How to fix "django ImproperlyConfigured exception: Requested setting, You must either define the environment variable DJANGO_SETTINGS_MODULE."

Our Django application uses Django Rest Framework, Oauth2 and double settings - one to develop and other to production, and a general one called base.py. The development.py is currently set up on manage.py file. We are also using django-cors-headers package.

This exception starts yesterday when I use ./manage.py runserver or another command. I tried to fix it. I read many posts from here (Stackoverflow) and in other websites, but I did not make it.

Could someone help me, please?

Traceback (most recent call last):
  File "./manage.py", line 5, in <module>
    from settings import base, development
  File "/home/ijdev/Área de Trabalho/izio/izio-bank/settings/base.py", line 12, in <module>
    from corsheaders.defaults import default_methods as cors_default_methods
  File "/home/ijdev/Área de Trabalho/izio/Izioenv/lib/python3.7/site-packages/corsheaders/defaults.py", line 14, in <module>
    CORS_ALLOW_HEADERS = getattr(settings, 'CORS_ALLOW_HEADERS', default_headers)
  File "/home/ijdev/Área de Trabalho/izio/Izioenv/lib/python3.7/site-packages/django/conf/__init__.py", line 79, in __getattr__
    self._setup(name)
  File "/home/ijdev/Área de Trabalho/izio/Izioenv/lib/python3.7/site-packages/django/conf/__init__.py", line 64, in _setup
    % (desc, ENVIRONMENT_VARIABLE))
django.core.exceptions.ImproperlyConfigured: Requested setting CORS_ALLOW_HEADERS, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

Upvotes: 0

Views: 217

Answers (1)

Alasdair
Alasdair

Reputation: 309009

In your base settings you have

from corsheaders.defaults import default_methods as cors_default_methods

This causes a circular import because corsheaders tries to import settings.

To solve the problem, remove the import from settings.

Upvotes: 1

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