How to fix error: django.core.exceptions.ImproperlyConfigured?

Question

Django

Task: test the script.
The script has an import of models and access to them.
When I run the file I get this.
django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.
The file itself:

from myproject_app.models import *
from django.db.models import Max
from myproject.settings import BASE_DIR

# ---------------------------------------------------------------
# То что нашел на Stack Owerflow
import os
import sys
from django.conf import settings

settings.configure()
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myproject.settings")
sys.path.append(BASE_DIR)
# ---------------------------------------------------------------

class Stripes:
   # Здесь в методах обращение к моделям.

if __name__ == '__main__':
    # Здесь тестирую

What I found on Stack Overflow doesn't help. Tell me, please, what am I doing wrong!?

Answer 1

Try doing settings.configure() before importing the models. If you want to do everything in one file take a look at https://github.com/readevalprint/mini-django/blob/...
You can also set an environment variable

# win
set DJANGO_SETTINGS_MODULE="myproject.settings"
# shell
export DJANGO_SETTINGS_MODULE="myproject.settings"