/xp-time gives a 500 server error

Describe the bug TypeError at /api/v1/game/xp-time/ unsupported operand type(s) for -: 'datetime.datetime' and 'NoneType'

To Reproduce Steps to reproduce the behaviour: Get request with auth token on /api/v1/game/xp-time/

Expected behaviour Should return value of XP of the person at that moment

Error in postman

`TypeError at /api/v1/game/xp-time/ unsupported operand type(s) for -: 'datetime.datetime' and 'NoneType'

Request Method: GET Request URL: https://enigma7-backend.herokuapp.com/api/v1/game/xp-time/ Django Version: 3.0.8 Python Executable: /app/.heroku/python/bin/python Python Version: 3.6.12 Python Path: ['/app/.heroku/python/bin', '/app', '/app/.heroku/python/lib/python36.zip', '/app/.heroku/python/lib/python3.6', '/app/.heroku/python/lib/python3.6/lib-dynload', '/app/.heroku/python/lib/python3.6/site-packages'] Server time: Sat, 7 Nov 2020 23:04:16 +0530 Installed Applications: ['django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'django.contrib.sites', 'game', 'users.apps.UsersConfig', 'dj_rest_auth', 'allauth', 'rest_framework.authtoken', 'allauth.account', 'allauth.socialaccount', 'dj_rest_auth.registration', 'rest_framework', 'allauth.socialaccount.providers.instagram', 'allauth.socialaccount.providers.google', 'corsheaders'] Installed Middleware: ['corsheaders.middleware.CorsMiddleware', 'django.middleware.security.SecurityMiddleware', 'whitenoise.middleware.WhiteNoiseMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware']

Traceback (most recent call last): File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner response = get_response(request) File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 115, in _get_response response = self.process_exception_by_middleware(e, request) File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 113, in _get_response response = wrapped_callback(request, *callback_args, callback_kwargs) File "/app/.heroku/python/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view return view_func(*args, *kwargs) File "/app/.heroku/python/lib/python3.6/site-packages/django/views/generic/base.py", line 71, in view return self.dispatch(request, args, kwargs) File "/app/.heroku/python/lib/python3.6/site-packages/rest_framework/views.py", line 505, in dispatch response = self.handle_exception(exc) File "/app/.heroku/python/lib/python3.6/site-packages/rest_framework/views.py", line 465, in handle_exception self.raise_uncaught_exception(exc) File "/app/.heroku/python/lib/python3.6/site-packages/rest_framework/views.py", line 476, in raise_uncaught_exception raise exc File "/app/.heroku/python/lib/python3.6/site-packages/rest_framework/views.py", line 502, in dispatch response = handler(request, *args, **kwargs) File "/app/game/views.py", line 304, in get timezone.now() - request.user.user_status.first_timestamp

Exception Type: TypeError at /api/v1/game/xp-time/ Exception Value: unsupported operand type(s) for -: 'datetime.datetime' and 'NoneType' Request information: USER: ziyankarmali786@gmail.com

GET: No GET data

POST: No POST data

FILES: No FILES data

COOKIES: No cookie data

META: HTTP_ACCEPT = '/' HTTP_ACCEPT_ENCODING = 'gzip, deflate, br' HTTP_AUTHORIZATION = 'Token 30fba45c588ed7904a70da44cce083c54968ec5f' HTTP_CONNECTION = 'close' HTTP_CONNECT_TIME = '0' HTTP_HOST = 'enigma7-backend.herokuapp.com' HTTP_POSTMAN_TOKEN = '5d4e93a9-91f8-4dde-b27b-34b18b575f16' HTTP_TOTAL_ROUTE_TIME = '0' HTTP_USER_AGENT = 'PostmanRuntime/7.26.5' HTTP_VIA = '1.1 vegur' HTTP_X_FORWARDED_FOR = '182.70.132.221' HTTP_X_FORWARDED_PORT = '443' HTTP_X_FORWARDED_PROTO = 'https' HTTP_X_REQUEST_ID = '71572da7-476c-4868-8d01-02ab5285e018' HTTP_X_REQUEST_START = '1604770456679' PATH_INFO = '/api/v1/game/xp-time/' QUERY_STRING = '' RAW_URI = '/api/v1/game/xp-time/' REMOTE_ADDR = '10.63.255.131' REMOTE_PORT = '14614' REQUEST_METHOD = 'GET' SCRIPT_NAME = '' SERVER_NAME = '0.0.0.0' SERVER_PORT = '5412' SERVER_PROTOCOL = 'HTTP/1.1' SERVER_SOFTWARE = 'gunicorn/20.0.4' gunicorn.socket = <socket.socket fd=12, family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=0, laddr=('172.19.34.126', 5412), raddr=('10.63.255.131', 14614)> wsgi.errors = <gunicorn.http.wsgi.WSGIErrorsWrapper object at 0x7f641ee65be0> wsgi.file_wrapper = '' wsgi.input = <gunicorn.http.body.Body object at 0x7f641ee65630> wsgi.input_terminated = True wsgi.multiprocess = True wsgi.multithread = False wsgi.run_once = False wsgi.url_scheme = 'https' wsgi.version = '(1, 0)'

Settings: Using settings module enigma7_backend.settings ABSOLUTE_URL_OVERRIDES = {} ACCOUNT_AUTHENTICATION_METHOD = 'email' ACCOUNT_EMAIL_REQUIRED = True ACCOUNT_UNIQUE_EMAIL = True ACCOUNT_USERNAME_REQUIRED = False ACCOUNT_USER_MODEL_USERNAME_FIELD = None ADMINS = [] ALLOWED_HOSTS = ['.herokuapp.com'] APPEND_SLASH = True AUTHENTICATION_BACKENDS = ['django.contrib.auth.backends.ModelBackend'] AUTH_PASSWORD_VALIDATORS = '****' AUTH_USER_MODEL = 'users.User' BASE_DIR = '/app' CACHES = {'default': {'BACKEND': 'django.core.cache.backends.locmem.LocMemCache'}} CACHE_MIDDLEWARE_ALIAS = 'default' CACHE_MIDDLEWARE_KEY_PREFIX = '****' CACHE_MIDDLEWARE_SECONDS = 600 CORS_ALLOW_ALL_ORIGINS = True CSRF_COOKIE_AGE = 31449600 CSRF_COOKIE_DOMAIN = None CSRF_COOKIE_HTTPONLY = False CSRF_COOKIE_NAME = 'csrftoken' CSRF_COOKIE_PATH = '/' CSRF_COOKIE_SAMESITE = 'Lax' 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': {'ENGINE': 'django.db.backends.postgresql_psycopg2', 'NAME': 'ddb0ei1ug95k22', 'USER': 'wifkdxthazwfjw', 'PASSWORD': '****', 'HOST': 'ec2-54-166-107-5.compute-1.amazonaws.com', 'PORT': 5432, 'CONN_MAX_AGE': 500, 'ATOMIC_REQUESTS': False, 'AUTOCOMMIT': True, 'OPTIONS': {}, 'TIME_ZONE': None, 'TEST': {'CHARSET': None, 'COLLATION': None, 'NAME': None, 'MIRROR': None}}} DATABASE_ROUTERS = [] DATA_UPLOAD_MAX_MEMORY_SIZE = 2621440 DATA_UPLOAD_MAX_NUMBER_FIELDS = 1000 DATETIME_FORMAT = 'N j, Y, P' 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 = 'N j, 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_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_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 ENCRYPTION_KEY = '****' 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 = 420 FILE_UPLOAD_TEMP_DIR = None FIRST_DAY_OF_WEEK = 0 FIXTURE_DIRS = [] FORCE_SCRIPT_NAME = None FORMAT_MODULE_PATH = None FORM_RENDERER = 'django.forms.renderers.DjangoTemplates' IGNORABLE_404_URLS = [] INSTALLED_APPS = ['django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'django.contrib.sites', 'game', 'users.apps.UsersConfig', 'dj_rest_auth', 'allauth', 'rest_framework.authtoken', 'allauth.account', 'allauth.socialaccount', 'dj_rest_auth.registration', 'rest_framework', 'allauth.socialaccount.providers.instagram', 'allauth.socialaccount.providers.google', 'corsheaders'] INTERNAL_IPS = [] LANGUAGES = [('af', 'Afrikaans'), ('ar', 'Arabic'), ('ast', 'Asturian'), ('az', 'Azerbaijani'), ('bg', 'Bulgarian'), ('be', 'Belarusian'), ('bn', 'Bengali'), ('br', 'Breton'), ('bs', 'Bosnian'), ('ca', 'Catalan'), ('cs', 'Czech'), ('cy', 'Welsh'), ('da', 'Danish'), ('de', 'German'), ('dsb', 'Lower Sorbian'), ('el', 'Greek'), ('en', 'English'), ('en-au', 'Australian English'), ('en-gb', 'British English'), ('eo', 'Esperanto'), ('es', 'Spanish'), ('es-ar', 'Argentinian Spanish'), ('es-co', 'Colombian Spanish'), ('es-mx', 'Mexican Spanish'), ('es-ni', 'Nicaraguan Spanish'), ('es-ve', 'Venezuelan Spanish'), ('et', 'Estonian'), ('eu', 'Basque'), ('fa', 'Persian'), ('fi', 'Finnish'), ('fr', 'French'), ('fy', 'Frisian'), ('ga', 'Irish'), ('gd', 'Scottish Gaelic'), ('gl', 'Galician'), ('he', 'Hebrew'), ('hi', 'Hindi'), ('hr', 'Croatian'), ('hsb', 'Upper Sorbian'), ('hu', 'Hungarian'), ('hy', 'Armenian'), ('ia', 'Interlingua'), ('id', 'Indonesian'), ('io', 'Ido'), ('is', 'Icelandic'), ('it', 'Italian'), ('ja', 'Japanese'), ('ka', 'Georgian'), ('kab', 'Kabyle'), ('kk', 'Kazakh'), ('km', 'Khmer'), ('kn', 'Kannada'), ('ko', 'Korean'), ('lb', 'Luxembourgish'), ('lt', 'Lithuanian'), ('lv', 'Latvian'), ('mk', 'Macedonian'), ('ml', 'Malayalam'), ('mn', 'Mongolian'), ('mr', 'Marathi'), ('my', 'Burmese'), ('nb', 'Norwegian Bokmål'), ('ne', 'Nepali'), ('nl', 'Dutch'), ('nn', 'Norwegian Nynorsk'), ('os', 'Ossetic'), ('pa', 'Punjabi'), ('pl', 'Polish'), ('pt', 'Portuguese'), ('pt-br', 'Brazilian Portuguese'), ('ro', 'Romanian'), ('ru', 'Russian'), ('sk', 'Slovak'), ('sl', 'Slovenian'), ('sq', 'Albanian'), ('sr', 'Serbian'), ('sr-latn', 'Serbian Latin'), ('sv', 'Swedish'), ('sw', 'Swahili'), ('ta', 'Tamil'), ('te', 'Telugu'), ('th', 'Thai'), ('tr', 'Turkish'), ('tt', 'Tatar'), ('udm', 'Udmurt'), ('uk', 'Ukrainian'), ('ur', 'Urdu'), ('uz', 'Uzbek'), ('vi', 'Vietnamese'), ('zh-hans', 'Simplified Chinese'), ('zh-hant', 'Traditional Chinese')] LANGUAGES_BIDI = ['he', 'ar', 'fa', 'ur'] LANGUAGE_CODE = 'en-us' LANGUAGE_COOKIE_AGE = None LANGUAGE_COOKIE_DOMAIN = None LANGUAGE_COOKIE_HTTPONLY = False LANGUAGE_COOKIE_NAME = 'django_language' LANGUAGE_COOKIE_PATH = '/' LANGUAGE_COOKIE_SAMESITE = None LANGUAGE_COOKIE_SECURE = False LOCALE_PATHS = [] LOGGING = {} LOGGING_CONFIG = 'logging.config.dictConfig' LOGIN_REDIRECT_URL = '/accounts/profile/' LOGIN_URL = '/accounts/login/' LOGOUT_REDIRECT_URL = None MANAGERS = [] MEDIA_ROOT = '' MEDIA_URL = '' MESSAGE_STORAGE = 'django.contrib.messages.storage.fallback.FallbackStorage' MIDDLEWARE = ['corsheaders.middleware.CorsMiddleware', 'django.middleware.security.SecurityMiddleware', 'whitenoise.middleware.WhiteNoiseMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware'] MIGRATION_MODULES = {} MONTH_DAY_FORMAT = 'F j' NUMBER_GROUPING = 0 PASSWORD_HASHERS = '****' PASSWORD_RESET_TIMEOUT_DAYS = '****' PREPEND_WWW = False REST_AUTH_SERIALIZERS = {'LOGIN_SERIALIZER': 'dj_rest_auth.serializers.LoginSerializer', 'TOKEN_SERIALIZER': '****'} REST_FRAMEWORK = {'DEFAULT_AUTHENTICATION_CLASSES': ('rest_framework.authentication.TokenAuthentication', 'rest_framework.authentication.SessionAuthentication'), 'DEFAULT_PERMISSION_CLASSES': ('rest_framework.permissions.IsAuthenticated',)} ROOT_URLCONF = 'enigma7_backend.urls' SECRET_KEY = '****' SECURE_BROWSER_XSS_FILTER = False SECURE_CONTENT_TYPE_NOSNIFF = True SECURE_HSTS_INCLUDE_SUBDOMAINS = False SECURE_HSTS_PRELOAD = False SECURE_HSTS_SECONDS = 0 SECURE_PROXY_SSL_HEADER = None SECURE_REDIRECT_EXEMPT = [] SECURE_REFERRER_POLICY = None SECURE_SSL_HOST = None SECURE_SSL_REDIRECT = False SERVER_EMAIL = 'root@localhost' SESSION_CACHE_ALIAS = 'default' SESSION_COOKIE_AGE = 1209600 SESSION_COOKIE_DOMAIN = None SESSION_COOKIE_HTTPONLY = True SESSION_COOKIE_NAME = 'sessionid' SESSION_COOKIE_PATH = '/' SESSION_COOKIE_SAMESITE = 'Lax' SESSION_COOKIE_SECURE = False SESSION_ENGINE = 'django.contrib.sessions.backends.db' SESSION_EXPIRE_AT_BROWSER_CLOSE = False SESSION_FILE_PATH = None SESSION_SAVE_EVERY_REQUEST = False SESSION_SERIALIZER = 'django.contrib.sessions.serializers.JSONSerializer' SETTINGS_MODULE = 'enigma7_backend.settings' SHORT_DATETIME_FORMAT = 'm/d/Y P' SHORT_DATE_FORMAT = 'm/d/Y' SIGNING_BACKEND = 'django.core.signing.TimestampSigner' SILENCED_SYSTEM_CHECKS = [] SITE_ID = 1 SOCIALACCOUNT_AUTO_SIGNUP = True SOCIALACCOUNT_PROVIDERS = {'google': {'SCOPE': ['profile', 'email'], 'AUTH_PARAMS': {'access_type': 'offline'}}} STATICFILES_DIRS = [] STATICFILES_FINDERS = ['django.contrib.staticfiles.finders.FileSystemFinder', 'django.contrib.staticfiles.finders.AppDirectoriesFinder'] STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage' STATIC_ROOT = '/app/staticfiles' STATIC_URL = '/static/' 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']}}] 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 = 'Asia/Kolkata' 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 = 'enigma7_backend.wsgi.application' X_FRAME_OPTIONS = 'DENY' 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.`

IEEE-VIT / enigma7-backend

/xp-time gives a 500 server error #55