text: import os
  import environ
  import oscar
  
  env = environ.Env()
  
  # Path helper
  location = lambda x: os.path.join(
      os.path.dirname(os.path.realpath(__file__)), x)
  
  DEBUG = env.bool('DEBUG', default=True)
  
  ALLOWED_HOSTS = env.list('ALLOWED_HOSTS', default=['*'])
  
  EMAIL_SUBJECT_PREFIX = '[Oscar sandbox] '
  EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
  
  # Use a Sqlite database by default
  DATABASES = {
      'default': {
          'ENGINE': os.environ.get('DATABASE_ENGINE', 'django.db.backends.sqlite3'),
          'NAME': os.environ.get('DATABASE_NAME', location('db.sqlite')),
          'USER': os.environ.get('DATABASE_USER', None),
          'PASSWORD': os.environ.get('DATABASE_PASSWORD', None),
          'HOST': os.environ.get('DATABASE_HOST', None),
          'PORT': os.environ.get('DATABASE_PORT', None),
          'ATOMIC_REQUESTS': True
      }
  }
  
  CACHES = {
      'default': env.cache(default='locmemcache://'),
  }
  
  
  # Local time zone for this installation. Choices can be found here:
  # http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
  # although not all choices may be available on all operating systems.
  # On Unix systems, a value of None will cause Django to use the same
  # timezone as the operating system.
  # If running in a Windows environment this must be set to the same as your
  # system time zone.
  USE_TZ = True
  TIME_ZONE = 'Europe/London'
  
  TEST_RUNNER = 'django.test.runner.DiscoverRunner'
  
  # Language code for this installation. All choices can be found here:
  # http://www.i18nguy.com/unicode/language-identifiers.html
  LANGUAGE_CODE = 'en-gb'
  
  # Includes all languages that have >50% coverage in Transifex
  # Taken from Django's default setting for LANGUAGES
  gettext_noop = lambda s: s
  LANGUAGES = (
      ('ar', gettext_noop('Arabic')),
      ('ca', gettext_noop('Catalan')),
      ('cs', gettext_noop('Czech')),
      ('da', gettext_noop('Danish')),
      ('de', gettext_noop('German')),
      ('en-gb', gettext_noop('British English')),
      ('el', gettext_noop('Greek')),
      ('es', gettext_noop('Spanish')),
      ('fi', gettext_noop('Finnish')),
      ('fr', gettext_noop('French')),
      ('it', gettext_noop('Italian')),
      ('ko', gettext_noop('Korean')),
      ('nl', gettext_noop('Dutch')),
      ('pl', gettext_noop('Polish')),
      ('pt', gettext_noop('Portuguese')),
      ('pt-br', gettext_noop('Brazilian Portuguese')),
      ('ro', gettext_noop('Romanian')),
      ('ru', gettext_noop('Russian')),
      ('sk', gettext_noop('Slovak')),
      ('uk', gettext_noop('Ukrainian')),
      ('zh-cn', gettext_noop('Simplified Chinese')),
  )
  
  SITE_ID = 1
  
  # If you set this to False, Django will make some optimizations so as not
  # to load the internationalization machinery.
  USE_I18N = True
  
  # If you set this to False, Django will not format dates, numbers and
  # calendars according to the current locale
  USE_L10N = True
  
  # Absolute path to the directory that holds media.
  # Example: "/home/media/media.lawrence.com/"
  MEDIA_ROOT = location("public/media")
  
  # URL that handles the media served from MEDIA_ROOT. Make sure to use a
  # trailing slash if there is a path component (optional in other cases).
  # Examples: "http://media.lawrence.com", "http://example.com/media/"
  MEDIA_URL = '/media/'
  
  STATIC_URL = '/static/'
  STATIC_ROOT = location('public/static')
  STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
  STATICFILES_DIRS = (
      location('static/'),
  )
  STATICFILES_FINDERS = (
      'django.contrib.staticfiles.finders.FileSystemFinder',
      'django.contrib.staticfiles.finders.AppDirectoriesFinder',
  )
  
  # Make this unique, and don't share it with anybody.
  SECRET_KEY = env.str('SECRET_KEY', default='UajFCuyjDKmWHe29neauXzHi9eZoRXr6RMbT5JyAdPiACBP6Cra2')
  
  TEMPLATES = [
      {
          'BACKEND': 'django.template.backends.django.DjangoTemplates',
          'DIRS': [
              location('templates'),
          ],
          'OPTIONS': {
              'loaders': [
                  'django.template.loaders.filesystem.Loader',
                  'django.template.loaders.app_directories.Loader',
              ],
              'context_processors': [
                  'django.contrib.auth.context_processors.auth',
                  'django.template.context_processors.request',
                  'django.template.context_processors.debug',
                  'django.template.context_processors.i18n',
                  'django.template.context_processors.media',
                  'django.template.context_processors.static',
                  'django.contrib.messages.context_processors.messages',
  
                  # Oscar specific
                  'oscar.apps.search.context_processors.search_form',
                  'oscar.apps.communication.notifications.context_processors.notifications',
                  'oscar.apps.checkout.context_processors.checkout',
                  'oscar.core.context_processors.metadata',
              ],
              'debug': DEBUG,
          }
      }
  ]
  
  MIDDLEWARE = [
      'debug_toolbar.middleware.DebugToolbarMiddleware',
  
      'django.middleware.security.SecurityMiddleware',
      'whitenoise.middleware.WhiteNoiseMiddleware',
  
      'django.contrib.sessions.middleware.SessionMiddleware',
      'django.middleware.csrf.CsrfViewMiddleware',
      'django.middleware.clickjacking.XFrameOptionsMiddleware',
      'django.contrib.auth.middleware.AuthenticationMiddleware',
      'django.contrib.messages.middleware.MessageMiddleware',
      'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware',
  
      # Allow languages to be selected
      'django.middleware.locale.LocaleMiddleware',
      'django.middleware.http.ConditionalGetMiddleware',
      'django.middleware.common.CommonMiddleware',
  
      # Ensure a valid basket is added to the request instance for every request
      'oscar.apps.basket.middleware.BasketMiddleware',
  ]
  
  ROOT_URLCONF = 'urls'
  
  
  # A sample logging configuration. The only tangible logging
  # performed by this configuration is to send an email to
  # the site admins on every HTTP 500 error.
  # See http://docs.djangoproject.com/en/dev/topics/logging for
  # more details on how to customize your logging configuration.
  LOGGING = {
      'version': 1,
      'disable_existing_loggers': True,
      'formatters': {
          'verbose': {
              'format': '%(levelname)s %(asctime)s %(module)s %(message)s',
          },
          'simple': {
              'format': '[%(asctime)s] %(message)s'
          },
      },
      'root': {
          'level': 'DEBUG',
          'handlers': ['console'],
      },
      'handlers': {
          'null': {
              'level': 'DEBUG',
              'class': 'logging.NullHandler',
          },
          'console': {
              'level': 'DEBUG',
              'class': 'logging.StreamHandler',
              'formatter': 'simple'
          },
      },
      'loggers': {
          'oscar': {
              'level': 'DEBUG',
              'propagate': True,
          },
          'oscar.catalogue.import': {
              'handlers': ['console'],
              'level': 'INFO',
              'propagate': False,
          },
          'oscar.alerts': {
              'handlers': ['null'],
              'level': 'INFO',
              'propagate': False,
          },
  
          # Django loggers
          'django': {
              'handlers': ['null'],
              'propagate': True,
              'level': 'INFO',
          },
          'django.request': {
              'handlers': ['console'],
              'level': 'ERROR',
              'propagate': True,
          },
          'django.db.backends': {
              'level': 'WARNING',
              'propagate': True,
          },
          'django.security.DisallowedHost': {
              'handlers': ['null'],
              'propagate': False,
          },
  
          # Third party
          'raven': {
              'level': 'DEBUG',
              'handlers': ['console'],
              'propagate': False,
          },
          'sorl.thumbnail': {
              'handlers': ['console'],
              'propagate': True,
              'level': 'INFO',
          },
      }
  }
  
  
  INSTALLED_APPS = [
      'django.contrib.admin',
      'django.contrib.auth',
      'django.contrib.contenttypes',
      'django.contrib.sessions',
      'django.contrib.messages',
      'django.contrib.staticfiles',
      'django.contrib.sites',
      'django.contrib.flatpages',
  
      'oscar.config.Shop',
      'oscar.apps.analytics.apps.AnalyticsConfig',
      'oscar.apps.checkout.apps.CheckoutConfig',
      'oscar.apps.address.apps.AddressConfig',
      'oscar.apps.shipping.apps.ShippingConfig',
      'oscar.apps.catalogue.apps.CatalogueConfig',
      'oscar.apps.catalogue.reviews.apps.CatalogueReviewsConfig',
      'oscar.apps.communication.apps.CommunicationConfig',
      'oscar.apps.partner.apps.PartnerConfig',
      'oscar.apps.basket.apps.BasketConfig',
      'oscar.apps.payment.apps.PaymentConfig',
      'oscar.apps.offer.apps.OfferConfig',
      'oscar.apps.order.apps.OrderConfig',
      'oscar.apps.customer.apps.CustomerConfig',
      'oscar.apps.search.apps.SearchConfig',
      'oscar.apps.voucher.apps.VoucherConfig',
      'oscar.apps.wishlists.apps.WishlistsConfig',
      'oscar.apps.dashboard.apps.DashboardConfig',
      'oscar.apps.dashboard.reports.apps.ReportsDashboardConfig',
      'oscar.apps.dashboard.users.apps.UsersDashboardConfig',
      'oscar.apps.dashboard.orders.apps.OrdersDashboardConfig',
      'oscar.apps.dashboard.catalogue.apps.CatalogueDashboardConfig',
      'oscar.apps.dashboard.offers.apps.OffersDashboardConfig',
      'oscar.apps.dashboard.partners.apps.PartnersDashboardConfig',
      'oscar.apps.dashboard.pages.apps.PagesDashboardConfig',
      'oscar.apps.dashboard.ranges.apps.RangesDashboardConfig',
      'oscar.apps.dashboard.reviews.apps.ReviewsDashboardConfig',
      'oscar.apps.dashboard.vouchers.apps.VouchersDashboardConfig',
      'oscar.apps.dashboard.communications.apps.CommunicationsDashboardConfig',
      'oscar.apps.dashboard.shipping.apps.ShippingDashboardConfig',
  
      # 3rd-party apps that Oscar depends on
      'widget_tweaks',
      'haystack',
      'treebeard',
      'sorl.thumbnail',
      'easy_thumbnails',
      'django_tables2',
  
      # Django apps that the sandbox depends on
      'django.contrib.sitemaps',
  
      # 3rd-party apps that the sandbox depends on
      'django_extensions',
      'debug_toolbar',
  
      # For allowing dashboard access
      'apps.gateway',
  ]
  
  # Add Oscar's custom auth backend so users can sign in using their email
  # address.
  AUTHENTICATION_BACKENDS = (
      'oscar.apps.customer.auth_backends.EmailBackend',
      'django.contrib.auth.backends.ModelBackend',
  )
  
  AUTH_PASSWORD_VALIDATORS = [
      {
          'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
          'OPTIONS': {
              'min_length': 9,
          }
      },
      {
          'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
      },
  ]
  
  LOGIN_REDIRECT_URL = '/'
  APPEND_SLASH = True
  
  # ====================
  # Messages contrib app
  # ====================
  
  from django.contrib.messages import constants as messages
  MESSAGE_TAGS = {
      messages.ERROR: 'danger'
  }
  
  # Haystack settings
  HAYSTACK_CONNECTIONS = {
      'default': {
          'ENGINE': 'haystack.backends.whoosh_backend.WhooshEngine',
          'PATH': location('whoosh_index'),
      },
  }
  # Here's a sample Haystack config if using Solr (which is recommended)
  #HAYSTACK_CONNECTIONS = {
  #    'default': {
  #        'ENGINE': 'haystack.backends.solr_backend.SolrEngine',
  #        'URL': 'http://127.0.0.1:8983/solr/oscar_latest/',
  #        'INCLUDE_SPELLING': True
  #    },
  #}
  
  # =============
  # Debug Toolbar
  # =============
  
  INTERNAL_IPS = ['127.0.0.1', '::1']
  
  # ==============
  # Oscar settings
  # ==============
  
  from oscar.defaults import *
  
  # Meta
  # ====
  
  OSCAR_SHOP_TAGLINE = 'Sandbox'
  
  OSCAR_RECENTLY_VIEWED_PRODUCTS = 20
  OSCAR_ALLOW_ANON_CHECKOUT = True
  
  
  # Order processing
  # ================
  
  # Sample order/line status settings. This is quite simplistic. It's like you'll
  # want to override the set_status method on the order object to do more
  # sophisticated things.
  OSCAR_INITIAL_ORDER_STATUS = 'Pending'
  OSCAR_INITIAL_LINE_STATUS = 'Pending'
  
  # This dict defines the new order statuses than an order can move to
  OSCAR_ORDER_STATUS_PIPELINE = {
      'Pending': ('Being processed', 'Cancelled',),
      'Being processed': ('Complete', 'Cancelled',),
      'Cancelled': (),
      'Complete': (),
  }
  
  # This dict defines the line statuses that will be set when an order's status
  # is changed
  OSCAR_ORDER_STATUS_CASCADE = {
      'Being processed': 'Being processed',
      'Cancelled': 'Cancelled',
      'Complete': 'Shipped',
  }
  
  # LESS/CSS
  # ========
  
  # We default to using CSS files, rather than the LESS files that generate them.
  # If you want to develop Oscar's CSS, then set OSCAR_USE_LESS=True to enable the
  # on-the-fly less processor.
  OSCAR_USE_LESS = False
  
  # Sorl
  # ====
  
  THUMBNAIL_DEBUG = DEBUG
  THUMBNAIL_KEY_PREFIX = 'oscar-sandbox'
  THUMBNAIL_KVSTORE = env(
      'THUMBNAIL_KVSTORE',
      default='sorl.thumbnail.kvstores.cached_db_kvstore.KVStore')
  THUMBNAIL_REDIS_URL = env('THUMBNAIL_REDIS_URL', default=None)
  
  
  # Django 1.6 has switched to JSON serializing for security reasons, but it does not
  # serialize Models. We should resolve this by extending the
  # django/core/serializers/json.Serializer to have the `dumps` function. Also
  # in tests/config.py
  SESSION_SERIALIZER = 'django.contrib.sessions.serializers.JSONSerializer'
  
  # Security
  SECURE_SSL_REDIRECT = env.bool('SECURE_SSL_REDIRECT', default=False)
  SECURE_HSTS_SECONDS = env.int('SECURE_HSTS_SECONDS', default=0)
  SECURE_CONTENT_TYPE_NOSNIFF = True
  SECURE_BROWSER_XSS_FILTER = True
  
  # Try and import local settings which can be used to override any of the above.
  try:
      from settings_local import *
  except ImportError:
      pass
  