raise ImproperlyConfigured( django.core.exceptions.ImproperlyConfigured: Requested setting INSTALLED_APPS, but settings are not configured

Question

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

Unable to figure out the reason of the error.

Below is my settings.py:

Generated by 'django-admin startproject' using Django 3.2.9.

For more information on this file, see
https://docs.djangoproject.com/en/3.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.2/ref/settings/
"""

from pathlib import Path

# Build paths inside the project like this: BASE_DIR / 'subdir'.
import category.context_processors

BASE_DIR = Path(__file__).resolve().parent.parent

# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'django-insecure-(@pq@&r(t2tm_m8ci@$%z_z^l+kbnxdyd5#_+h8ckafos&8b5*'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []

# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'category',
    'accounts',
    'store',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'greatkart.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': ['templates'],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
                'category.context_processors.menu_links',
            ],
        },
    },
]

WSGI_APPLICATION = 'greatkart.wsgi.application'

AUTH_USER_MODEL = 'accounts.Account'

# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}

# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]

# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/

STATIC_URL = '/static/'
STATIC_ROOT = BASE_DIR / 'static'
STATICFILES_DIRS = [
    'greatkart/static',
]

# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

# media files configuration

MEDIA_URL = '/media/'
MEDIA_ROOT = BASE_DIR / 'media'

Below is my context processors:

from .models import Category
def menu_links(request):
    links = Category.objects.all()
    return dict(links=links)

Below is my category models:

from django.db import models
from django.urls import reverse


# Create your models here.
class Category(models.Model):
    name = models.CharField(max_length=50, unique=True)
    slug = models.SlugField(max_length=100, unique=True)
    description = models.TextField(max_length=255, blank=True)
    cat_image = models.ImageField(upload_to='photos/categories', blank=True)

    class Meta:
        verbose_name = 'Category'
        verbose_name_plural = 'Categories'

    def get_url(self):
        return reverse('products_by_Category', args=[self.slug])

    def __str__(self):
        return self.name

Answer 1

I just faced this issue for wrong command i think you also faced this issue for same reason so you can try this command

python .\manage.py runserver 8000

and you must add triple double quotes in your setting.py

"""

Answer 2

Please use the following code in settings.py:

    """
    Django settings for greatkart project.
    
    Generated by 'django-admin startproject' using Django 3.2.9.
    
    For more information on this file, see
    https://docs.djangoproject.com/en/3.2/topics/settings/
    
    For the full list of settings and their values, see
    https://docs.djangoproject.com/en/3.2/ref/settings/
    """
    
    from pathlib import Path
    
    # Build paths inside the project like this: BASE_DIR / 'subdir'.
    BASE_DIR = Path(__file__).resolve().parent.parent
    
    
    # Quick-start development settings - unsuitable for production
    # See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/
    
    # SECURITY WARNING: keep the secret key used in production secret!
    SECRET_KEY = 'django-insecure-t*t_%wa66s=h+zo0nw^#x)!s#omgu^m@hm^-9pb2u!ql90lfu5'
    
    # SECURITY WARNING: don't run with debug turned on in production!
    DEBUG = True
    
    ALLOWED_HOSTS = []
    
    
    # Application definition
    
    INSTALLED_APPS = [
        'django.contrib.admin',
        'django.contrib.auth',
        'django.contrib.contenttypes',
        'django.contrib.sessions',
        'django.contrib.messages',
        'django.contrib.staticfiles',
        'category',
        # 'accounts',
        # 'store',
    ]
    
    MIDDLEWARE = [
        'django.middleware.security.SecurityMiddleware',
        'django.contrib.sessions.middleware.SessionMiddleware',
        'django.middleware.common.CommonMiddleware',
        'django.middleware.csrf.CsrfViewMiddleware',
        'django.contrib.auth.middleware.AuthenticationMiddleware',
        'django.contrib.messages.middleware.MessageMiddleware',
        'django.middleware.clickjacking.XFrameOptionsMiddleware',
    ]
    
    ROOT_URLCONF = 'greatkart.urls'
    
    TEMPLATES = [
        {
            'BACKEND': 'django.template.backends.django.DjangoTemplates',
            'DIRS': [BASE_DIR/'templates'],
            'APP_DIRS': True,
            'OPTIONS': {
                'context_processors': [
                    'django.template.context_processors.debug',
                    'django.template.context_processors.request',
                    'django.contrib.auth.context_processors.auth',
                    'django.contrib.messages.context_processors.messages',
                    'category.context_processors.menu_links',
                ],
            },
        },
    ]
    
    WSGI_APPLICATION = 'greatkart.wsgi.application'
    
    
    # Database
    # https://docs.djangoproject.com/en/3.2/ref/settings/#databases
    
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.sqlite3',
            'NAME': BASE_DIR / 'db.sqlite3',
        }
    }
    
    
    # Password validation
    # https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators
    
    AUTH_PASSWORD_VALIDATORS = [
        {
            'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
        },
        {
            'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
        },
        {
            'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
        },
        {
            'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
        },
    ]
    
    
    # Internationalization
    # https://docs.djangoproject.com/en/3.2/topics/i18n/
    
    LANGUAGE_CODE = 'en-us'
    
    TIME_ZONE = 'UTC'
    
    USE_I18N = True
    
    USE_L10N = True
    
    USE_TZ = True
    
    
    # Static files (CSS, JavaScript, Images)
    # https://docs.djangoproject.com/en/3.2/howto/static-files/
    
    STATIC_URL = '/static/'
    STATIC_ROOT = BASE_DIR / 'static'
    STATICFILES_DIRS = [
        'greatkart/static',
    ]
    
    
    # Default primary key field type
    # https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field
    
    DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
    
    MEDIA_URL = '/media/'
    MEDIA_ROOT = BASE_DIR / 'media'

Answer 3

you must remove the starting double quotes in the settings.py