text: from pathlib import Path
  import os
  
  # 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/4.0/howto/deployment/checklist/
  
  # SECURITY WARNING: keep the secret key used in production secret!
  SECRET_KEY = os.environ.get("SECRET_KEY")
  
  # SECURITY WARNING: don't run with debug turned on in production!
  DEBUG = os.environ.get("IS_DEBUG") == "True"
  
  ALLOWED_HOSTS = ["nasil-yazilir.herokuapp.com", "127.0.0.1"]
  
  
  # Application definition
  
  INSTALLED_APPS = [
      "whitenoise.runserver_nostatic",
      "django.contrib.admin",
      "django.contrib.auth",
      "django.contrib.contenttypes",
      "django.contrib.sessions",
      "django.contrib.messages",
      "django.contrib.staticfiles",
      "corsheaders",
      "rest_framework",
      "api",
  ]
  
  MIDDLEWARE = [
      "django.middleware.security.SecurityMiddleware",
      "whitenoise.middleware.WhiteNoiseMiddleware",
      "django.contrib.sessions.middleware.SessionMiddleware",
      "corsheaders.middleware.CorsMiddleware",
      "django.middleware.common.CommonMiddleware",
      "django.middleware.csrf.CsrfViewMiddleware",
      "django.contrib.auth.middleware.AuthenticationMiddleware",
      "django.contrib.messages.middleware.MessageMiddleware",
      "django.middleware.clickjacking.XFrameOptionsMiddleware",
  ]
  
  STATICFILES_STORAGE = "whitenoise.storage.CompressedStaticFilesStorage"
  
  STATIC_ROOT = os.path.join(BASE_DIR, "staticfiles")
  
  ROOT_URLCONF = "core.urls"
  
  TEMPLATES = [
      {
          "BACKEND": "django.template.backends.django.DjangoTemplates",
          "DIRS": [],
          "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",
              ],
          },
      },
  ]
  
  WSGI_APPLICATION = "core.wsgi.application"
  
  
  # Database
  # https://docs.djangoproject.com/en/4.0/ref/settings/#databases
  
  if os.environ.get("IS_PROD") == "True":
      DATABASES = {
          "default": {
              "ENGINE": "django.db.backends.postgresql_psycopg2",
              "NAME": os.environ.get("DB_NAME"),
              "USER": os.environ.get("DB_USER"),
              "PASSWORD": os.environ.get("DB_PASSWORD"),
              "HOST": os.environ.get("DB_HOST"),
              "PORT": os.environ.get("DB_PORT"),
          }
      }
  else:
      DATABASES = {
          "default": {
              "ENGINE": "django.db.backends.sqlite3",
              "NAME": BASE_DIR / "db.sqlite3",
          }
      }
  
  
  # Password validation
  # https://docs.djangoproject.com/en/4.0/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/4.0/topics/i18n/
  
  LANGUAGE_CODE = "en-us"
  
  TIME_ZONE = "Europe/Istanbul"
  
  USE_I18N = True
  
  USE_TZ = False
  
  
  # Static files (CSS, JavaScript, Images)
  # https://docs.djangoproject.com/en/4.0/howto/static-files/
  
  STATIC_URL = "static/"
  
  # Default primary key field type
  # https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field
  
  DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
  
  CORS_ALLOWED_ORIGINS = [
      "http://berkkaraal.com",
      "https://berkkaraal.com",
      "http://localhost:5500",
  ]
  