IntegrityError at /api/users/login/
duplicate key value violates unique constraint "user_username_key"
DETAIL:  Key (username)=(+380631111112) already exists.


Request Method: POST
Request URL: http://helpman.tk/api/users/login/
Django Version: 1.11.3
Python Executable: /usr/bin/python3
Python Version: 3.5.2
Python Path: ['/helpman', '/usr/local/bin', '/usr/lib/python35.zip', '/usr/lib/python3.5', '/usr/lib/python3.5/plat-x86_64-linux-gnu', '/usr/lib/python3.5/lib-dynload', '/usr/local/lib/python3.5/dist-packages', '/usr/lib/python3/dist-packages']
Server time: Чт, 31 Авг 2017 07:07:07 -0500
Installed Applications:
('helpman.apps.authentication',
 'modeltranslation',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django_extensions',
 'django_assets',
 'rosetta',
 'rest_framework',
 'rest_framework.authtoken',
 'rest_framework_swagger',
 'imagekit',
 'smart_docs',
 'email_sender',
 'sms_sender',
 'ckeditor',
 'rangefilter',
 'fixtures_migrator',
 'helpman.libs',
 'helpman.apps.website',
 'helpman.apps.uploads',
 'helpman.apps.order',
 'helpman.apps.black_list',
 'helpman.apps.moderation',
 'helpman.apps.autosearch',
 'helpman.apps.notification',
 'helpman.apps.terms_of_use',
 'feedback',
 'django_firebase',
 'silk')
Installed Middleware:
['silk.middleware.SilkyMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.locale.LocaleMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.security.SecurityMiddleware']


Traceback:

File "/usr/local/lib/python3.5/dist-packages/django/db/backends/utils.py" in execute
  65.                 return self.cursor.execute(sql, params)


      The above exception (duplicate key value violates unique constraint "user_username_key"
DETAIL:  Key (username)=(+380631111112) already exists.
) was the direct cause of the following exception:



File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/exception.py" in inner
  41.             response = get_response(request)

File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/base.py" in _get_response
  187.                 response = self.process_exception_by_middleware(e, request)

File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/base.py" in _get_response
  185.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/usr/local/lib/python3.5/dist-packages/django/views/decorators/csrf.py" in wrapped_view
  58.         return view_func(*args, **kwargs)

File "/usr/local/lib/python3.5/dist-packages/django/views/generic/base.py" in view
  68.             return self.dispatch(request, *args, **kwargs)

File "/usr/local/lib/python3.5/dist-packages/rest_framework/views.py" in dispatch
  489.             response = self.handle_exception(exc)

File "/usr/local/lib/python3.5/dist-packages/rest_framework/views.py" in handle_exception
  449.             self.raise_uncaught_exception(exc)

File "/usr/local/lib/python3.5/dist-packages/rest_framework/views.py" in dispatch
  486.             response = handler(request, *args, **kwargs)

File "/helpman/helpman/apps/authentication/views.py" in post
  57.             return self.create(request, serializer, *args, **kwargs)

File "/usr/lib/python3.5/contextlib.py" in inner
  30.                 return func(*args, **kwds)

File "/helpman/helpman/apps/authentication/views.py" in create
  62.         serializer.create(serializer.data)

File "/helpman/helpman/apps/authentication/serializers.py" in create
  77.             self.user = User.objects.create_user(phone, phone, password=password)

File "/helpman/helpman/apps/authentication/models.py" in create_user
  61.         return self._create_user(phone, user_type, username, password)

File "/helpman/helpman/apps/authentication/models.py" in _create_user
  55.             username=username

File "/usr/local/lib/python3.5/dist-packages/django/db/models/manager.py" in manager_method
  85.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/query.py" in create
  394.         obj.save(force_insert=True, using=self.db)

File "/usr/local/lib/python3.5/dist-packages/django/contrib/auth/base_user.py" in save
  80.         super(AbstractBaseUser, self).save(*args, **kwargs)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/base.py" in save
  807.                        force_update=force_update, update_fields=update_fields)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/base.py" in save_base
  837.             updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/base.py" in _save_table
  923.             result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/base.py" in _do_insert
  962.                                using=using, raw=raw)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/manager.py" in manager_method
  85.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/query.py" in _insert
  1076.         return query.get_compiler(using=using).execute_sql(return_id)

File "/usr/local/lib/python3.5/dist-packages/django/db/models/sql/compiler.py" in execute_sql
  1099.                 cursor.execute(sql, params)

File "/usr/local/lib/python3.5/dist-packages/django/db/backends/utils.py" in execute
  80.             return super(CursorDebugWrapper, self).execute(sql, params)

File "/usr/local/lib/python3.5/dist-packages/django/db/backends/utils.py" in execute
  65.                 return self.cursor.execute(sql, params)

File "/usr/local/lib/python3.5/dist-packages/django/db/utils.py" in __exit__
  94.                 six.reraise(dj_exc_type, dj_exc_value, traceback)

File "/usr/local/lib/python3.5/dist-packages/django/utils/six.py" in reraise
  685.             raise value.with_traceback(tb)

File "/usr/local/lib/python3.5/dist-packages/django/db/backends/utils.py" in execute
  65.                 return self.cursor.execute(sql, params)

Exception Type: IntegrityError at /api/users/login/
Exception Value: duplicate key value violates unique constraint "user_username_key"
DETAIL:  Key (username)=(+380631111112) already exists.

Request information:
USER: AnonymousUser

GET: No GET data

POST: No POST data

FILES: No FILES data

COOKIES: No cookie data

META:
CONTENT_LENGTH = '50'
CONTENT_TYPE = 'application/json'
HTTP_ACCEPT = '*/*'
HTTP_ACCEPT_ENCODING = 'gzip, deflate, br'
HTTP_ACCEPT_LANGUAGE = 'uk-UA,uk;q=0.8,ru;q=0.6,en-US;q=0.4,en;q=0.2'
HTTP_CACHE_CONTROL = 'no-cache'
HTTP_CONNECTION = 'close'
HTTP_HOST = 'helpman.tk'
HTTP_ORIGIN = 'chrome-extension://fhbjgbiflinjbdggehcddcbncdddomop'
HTTP_POSTMAN_TOKEN = '9bc8fc26-39bb-3155-73a2-2f879212654c'
HTTP_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36'
HTTP_X_FORWARDED_FOR = '77.120.243.5'
HTTP_X_REAL_IP = '77.120.243.5'
PATH_INFO = '/api/users/login/'
QUERY_STRING = ''
RAW_URI = '/api/users/login/'
REMOTE_ADDR = "b''"
REQUEST_METHOD = 'POST'
SCRIPT_NAME = ''
SERVER_NAME = 'helpman.tk'
SERVER_PORT = '80'
SERVER_PROTOCOL = 'HTTP/1.0'
SERVER_SOFTWARE = 'gunicorn/19.7.1'
gunicorn.socket = <socket.socket fd=14, family=AddressFamily.AF_UNIX, type=SocketKind.SOCK_STREAM, proto=0, laddr=/run/gunicorn/socket>
wsgi.errors = <gunicorn.http.wsgi.WSGIErrorsWrapper object at 0x7fe60604ff98>
wsgi.file_wrapper = ''
wsgi.input = <gunicorn.http.body.Body object at 0x7fe60607bc88>
wsgi.multiprocess = True
wsgi.multithread = False
wsgi.run_once = False
wsgi.url_scheme = 'http'
wsgi.version =

Settings:
Using settings module helpman.settings.staging
ABSOLUTE_URL_OVERRIDES = {}
ADMINS = []
ADMIN_AJAX_URL_PREFIX = '^admin/ajax/'
ADMIN_URL_PREFIX = '^admin/'
AJAX_URL_PREFIX = 'ajax/'
ALLOWED_HOSTS = ['*']
API_URL_PREFIX = '********************'
APPEND_SLASH = True
ASSETS_LOAD_PATH = ['helpman/static', 'helpman/apps/website/static', 'helpman/apps/moderation/static']
ASSETS_ROOT = '/helpman/helpman/var/prestatic'
AUTHENTICATION_BACKENDS = 'helpman.apps.authentication.backend.EmailBackend'
AUTH_PASSWORD_VALIDATORS = '********************'
AUTH_USER_MODEL = 'authentication.User'
BASE_DIR = '/helpman/helpman'
CACHES = {'default': {'LOCATION': '127.0.0.1:6379', 'BACKEND': 'redis_cache.RedisCache', 'OPTIONS': {'DB': 1}}}
CACHE_MIDDLEWARE_ALIAS = 'default'
CACHE_MIDDLEWARE_KEY_PREFIX = '********************'
CACHE_MIDDLEWARE_SECONDS = 600
CHECK_FEEDBACK = True
CKEDITOR_CONFIGS = {'default': {'toolbar_Custom': [['Bold', 'Italic', 'Underline'], ['NumberedList', 'BulletedList', '-', 'Outdent', 'Indent', '-', 'JustifyLeft', 'JustifyCenter', 'JustifyRight', 'JustifyBlock'], ['Link', 'Unlink'], ['RemoveFormat', 'Source']], 'toolbar': 'Custom'}}
CSRF_COOKIE_AGE = 31449600
CSRF_COOKIE_DOMAIN = None
CSRF_COOKIE_HTTPONLY = False
CSRF_COOKIE_NAME = 'csrftoken'
CSRF_COOKIE_PATH = '/'
CSRF_COOKIE_SECURE = False
CSRF_FAILURE_VIEW = 'django.views.csrf.csrf_failure'
CSRF_HEADER_NAME = 'HTTP_X_CSRFTOKEN'
CSRF_TRUSTED_ORIGINS = []
CSRF_USE_SESSIONS = False
DATABASES = {'default': {'PORT': '5432', 'HOST': '127.0.0.1', 'AUTOCOMMIT': True, 'OPTIONS': {}, 'NAME': 'helpman_db', 'USER': 'helpman', 'CONN_MAX_AGE': 0, 'ATOMIC_REQUESTS': False, 'TEST': {'NAME': None, 'COLLATION': None, 'CHARSET': None, 'MIRROR': None}, 'PASSWORD': '********************', 'TIME_ZONE': None, 'ENGINE': 'django.db.backends.postgresql_psycopg2'}}
DATABASE_ROUTERS = []
DATA_UPLOAD_MAX_MEMORY_SIZE = 2621440
DATA_UPLOAD_MAX_NUMBER_FIELDS = 1000
DATETIME_FORMAT = '%d.%m.%Y %H:%M'
DATETIME_INPUT_FORMATS = ['%Y-%m-%d %H:%M:%S', '%Y-%m-%d %H:%M:%S.%f', '%Y-%m-%d %H:%M', '%Y-%m-%d', '%m/%d/%Y %H:%M:%S', '%m/%d/%Y %H:%M:%S.%f', '%m/%d/%Y %H:%M', '%m/%d/%Y', '%m/%d/%y %H:%M:%S', '%m/%d/%y %H:%M:%S.%f', '%m/%d/%y %H:%M', '%m/%d/%y']
DATE_FORMAT = '%d.%m.%Y'
DATE_INPUT_FORMATS = ['%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y', '%b %d %Y', '%b %d, %Y', '%d %b %Y', '%d %b, %Y', '%B %d %Y', '%B %d, %Y', '%d %B %Y', '%d %B, %Y']
DEBUG = True
DEBUG_PROPAGATE_EXCEPTIONS = False
DECIMAL_SEPARATOR = '.'
DEFAULT_CHARSET = 'utf-8'
DEFAULT_CONTENT_TYPE = 'text/html'
DEFAULT_EXCEPTION_REPORTER_FILTER = 'django.views.debug.SafeExceptionReporterFilter'
DEFAULT_FILE_STORAGE = 'django.core.files.storage.FileSystemStorage'
DEFAULT_FROM_EMAIL = 'webmaster@localhost'
DEFAULT_INDEX_TABLESPACE = ''
DEFAULT_TABLESPACE = ''
DISALLOWED_USER_AGENTS = []
EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'localhost'
EMAIL_HOST_PASSWORD = '********************'
EMAIL_HOST_USER = ''
EMAIL_PORT = 25
EMAIL_SENDER_EXTENDED_MODE = False
EMAIL_SSL_CERTFILE = None
EMAIL_SSL_KEYFILE = '********************'
EMAIL_SUBJECT_PREFIX = '[Django] '
EMAIL_TIMEOUT = None
EMAIL_USE_LOCALTIME = False
EMAIL_USE_SSL = False
EMAIL_USE_TLS = False
FILE_CHARSET = 'utf-8'
FILE_UPLOAD_DIRECTORY_PERMISSIONS = None
FILE_UPLOAD_HANDLERS = ['django.core.files.uploadhandler.MemoryFileUploadHandler', 'django.core.files.uploadhandler.TemporaryFileUploadHandler']
FILE_UPLOAD_MAX_MEMORY_SIZE = 2621440
FILE_UPLOAD_PERMISSIONS = None
FILE_UPLOAD_TEMP_DIR = None
FIREBASE_DUMMY = True
FIRST_DAY_OF_WEEK = 0
FIXTURE_DIRS = []
FORCE_SCRIPT_NAME = None
FORMAT_MODULE_PATH = None
FORM_RENDERER = 'django.forms.renderers.DjangoTemplates'
HTTP_HOST = 'helpman.tk'
IGNORABLE_404_URLS = []
IMAGEKIT_CACHEFILE_DIR = 'CACHE/images'
IMAGEKIT_CACHEFILE_NAMER = 'imagekit.cachefiles.namers.hash'
IMAGEKIT_CACHE_BACKEND = 'default'
IMAGEKIT_CACHE_PREFIX = 'imagekit:'
IMAGEKIT_CACHE_TIMEOUT = 300
IMAGEKIT_DEFAULT_CACHEFILE_BACKEND = 'imagekit.cachefiles.backends.Simple'
IMAGEKIT_DEFAULT_CACHEFILE_STRATEGY = 'imagekit.cachefiles.strategies.JustInTime'
IMAGEKIT_DEFAULT_FILE_STORAGE = 'django.core.files.storage.FileSystemStorage'
IMAGEKIT_SPEC_CACHEFILE_NAMER = 'imagekit.cachefiles.namers.source_name_as_path'
IMAGEKIT_USE_MEMCACHED_SAFE_CACHE_KEY = '********************'
INSTALLED_APPS =
INTERNAL_IPS = []
LANGUAGES = ('ru', 'Russian')
LANGUAGES_BIDI = ['he', 'ar', 'fa', 'ur']
LANGUAGE_CODE = 'ru'
LANGUAGE_COOKIE_AGE = None
LANGUAGE_COOKIE_DOMAIN = None
LANGUAGE_COOKIE_NAME = '_local_'
LANGUAGE_COOKIE_PATH = '/'
LOCALE_PATHS = ['/helpman/helpman/locale']
LOGGING = {'formatters': {'verbose': {'datefmt': '%d/%b/%Y %H:%M:%S', 'format': '[%(asctime)s] %(levelname)s [%(name)s:%(module)s:%(lineno)s] %(message)s'}, 'simple': {'format': '%(levelname)s %(asctime)s %(module)s %(message)s'}}, 'handlers': {'requests_file': {'level': 'DEBUG', 'backupCount': 10, 'maxBytes': 500000, 'class': 'logging.handlers.RotatingFileHandler', 'filename': 'helpman/var/logs/requests.log', 'formatter': 'verbose'}, 'null': {'class': 'logging.NullHandler', 'level': 'DEBUG'}, 'error_file': {'level': 'ERROR', 'backupCount': 5, 'maxBytes': 500000, 'class': 'logging.handlers.RotatingFileHandler', 'filename': 'helpman/var/logs/error.log', 'formatter': 'verbose'}, 'sentry': {'class': 'raven.contrib.django.raven_compat.handlers.SentryHandler', 'level': 'ERROR'}, 'debug_file': {'level': 'DEBUG', 'backupCount': 10, 'maxBytes': 500000, 'class': 'logging.handlers.RotatingFileHandler', 'filename': 'helpman/var/logs/debug.log', 'formatter': 'verbose'}}, 'version': 1, 'disable_existing_loggers': False, 'filters': {'require_debug_false': {'()': 'django.utils.log.RequireDebugFalse'}}, 'loggers': {'django.server': {'handlers': ['requests_file'], 'propagate': True, 'level': 'INFO'}, 'helpman': {'handlers': ['debug_file'], 'propagate': True, 'level': 'DEBUG'}, 'django': {'handlers': ['error_file', 'sentry'], 'propagate': True, 'level': 'ERROR'}}}
LOGGING_CONFIG = 'logging.config.dictConfig'
LOGIN_REDIRECT_URL = '/'
LOGIN_URL = '/admin/login/'
LOGOUT_REDIRECT_URL = None
LOGOUT_URL = '/admin/logout/'
MANAGERS = []
MEDIA_ROOT = '/helpman/helpman/media'
MEDIA_URL = '/media/'
MESSAGE_STORAGE = 'django.contrib.messages.storage.fallback.FallbackStorage'
MIDDLEWARE = ['silk.middleware.SilkyMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.locale.LocaleMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'django.middleware.security.SecurityMiddleware']
MIDDLEWARE_CLASSES = ['django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware']
MIGRATION_MODULES = {}
MONTH_DAY_FORMAT = 'F j'
NUMBER_GROUPING = 0
PASSWORD_HASHERS = '********************'
PASSWORD_RESET_TIMEOUT_DAYS = '********************'
PREPEND_WWW = False
PROJECT_NAME = 'helpman'
RAVEN_CONFIG = {'release': '4a7fa3984ce9db7d19f0f41f60cca0db22539bf7', 'dsn': 'https://bd61fb315c084bba8a361c43354a74cd:2dbb6a4756f445b58e0c2c343da71990@sentry.kit-xxi.com.ua/8'}
REST_FRAMEWORK = {'DEFAULT_RENDERER_CLASSES': ('rest_framework.renderers.JSONRenderer',), 'DEFAULT_PERMISSION_CLASSES': ['rest_framework.permissions.IsAuthenticated'], 'DEFAULT_MODEL_SERIALIZER_CLASS': 'rest_framework.serializers.ModelSerializer', 'TEST_REQUEST_DEFAULT_FORMAT': 'json', 'DEFAULT_AUTHENTICATION_CLASSES': ['rest_framework.authentication.TokenAuthentication', 'rest_framework.authentication.SessionAuthentication']}
ROOT_URLCONF = 'helpman.urls'
SECRET_KEY = '********************'
SECURE_BROWSER_XSS_FILTER = False
SECURE_CONTENT_TYPE_NOSNIFF = False
SECURE_HSTS_INCLUDE_SUBDOMAINS = False
SECURE_HSTS_PRELOAD = False
SECURE_HSTS_SECONDS = 0
SECURE_PROXY_SSL_HEADER =
SECURE_REDIRECT_EXEMPT = []
SECURE_SSL_HOST = None
SECURE_SSL_REDIRECT = False
SEND_EMAIL = False
SEND_NOTIFICATION = True
SEND_NOTIFICATIONS = True
SEND_SMS = True
SERVER_EMAIL = 'root@localhost'
SESSION_CACHE_ALIAS = 'default'
SESSION_COOKIE_AGE = 36000
SESSION_COOKIE_DOMAIN = None
SESSION_COOKIE_HTTPONLY = True
SESSION_COOKIE_NAME = 'sessionid'
SESSION_COOKIE_PATH = '/'
SESSION_COOKIE_SECURE = False
SESSION_ENGINE = 'django.contrib.sessions.backends.signed_cookies'
SESSION_EXPIRE_AT_BROWSER_CLOSE = True
SESSION_FILE_PATH = None
SESSION_SAVE_EVERY_REQUEST = False
SESSION_SERIALIZER = 'django.contrib.sessions.serializers.JSONSerializer'
SETTINGS_MODULE = 'helpman.settings.staging'
SHORT_DATETIME_FORMAT = 'm/d/Y P'
SHORT_DATE_FORMAT = 'm/d/Y'
SIGNING_BACKEND = 'django.core.signing.TimestampSigner'
SILENCED_SYSTEM_CHECKS = []
SILKY_AUTHENTICATION = True
SILKY_AUTHORISATION = True
SILKY_MAX_RECORDED_REQUESTS = 2000
SILKY_META = True
SILKY_PYTHON_PROFILER = True
SITE_AJAX_URL_PREFIX = '^ajax/'
SITE_URL_PREFIX = '^'
SMS_SENDER_EXTENDED_MODE = False
STATICFILES_DIRS =
STATICFILES_FINDERS = ['django.contrib.staticfiles.finders.FileSystemFinder', 'django.contrib.staticfiles.finders.AppDirectoriesFinder']
STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.StaticFilesStorage'
STATIC_ROOT = '/helpman/helpman/var/static'
STATIC_URL = '/static/'
SWAGGER_SETTINGS = {'SHOW_REQUEST_HEADERS': True, 'JSON_EDITOR': True}
TEMPLATES = [{'DIRS': ['/helpman/helpman/templates/'], 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'APP_DIRS': True, 'OPTIONS': {'context_processors': ['django.contrib.auth.context_processors.auth', 'django.template.context_processors.debug', 'django.template.context_processors.request', 'django.template.context_processors.i18n', 'django.template.context_processors.media', 'django.template.context_processors.static', 'django.template.context_processors.tz', 'django.contrib.messages.context_processors.messages'], 'libraries': {}}}]
TEST_NON_SERIALIZED_APPS = []
TEST_RUNNER = 'django.test.runner.DiscoverRunner'
THOUSAND_SEPARATOR = ','
TIME_FORMAT = 'P'
TIME_INPUT_FORMATS = ['%H:%M:%S', '%H:%M:%S.%f', '%H:%M']
TIME_ZONE = 'America/Chicago'
USER_MODEL = 'authentication.User'
USER_MODEL_APP = 'authentication'
USER_MODEL_NAME = 'User'
USER_MODEL_STR = 'helpman.apps.authentication.models.User'
USE_ETAGS = False
USE_I18N = True
USE_L10N = True
USE_THOUSAND_SEPARATOR = False
USE_TZ = True
USE_X_FORWARDED_HOST = False
USE_X_FORWARDED_PORT = False
WSGI_APPLICATION = 'helpman.wsgi.application'
X_FRAME_OPTIONS = 'SAMEORIGIN'
YEAR_MONTH_FORMAT = 'F Y'


You're seeing this error because you have DEBUG = True in your
Django settings file. Change that to False, and Django will
display a standard page generated by the handler for this status code.