AttributeError 'tuple' object has no attribute 'encode' during all auth login with facebook

Question

I am trying to integrate the social login into my project. during login Facebook, gives the error 'tuple' object has no attribute 'encode'.I have used django-allauth django-allauth

and I used the Heroku go deploy projects. to see the error click.

Inside the database data, entry from Facebook is happening.

to see facebook entry

any suggestions to rid of this problem.

Exception Type: AttributeError
Exception Value:    
                 'tuple' object has no attribute 'encode'

django-allauth parameters from setting.py SITE_ID = 1

# Provider specific settings


EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_HOST_USER =os.getenv('HOST_EMAIL', '[email protected]'),
EMAIL_HOST_PASSWORD = os.getenv('HOST_EMAIL_PASSWORD', 'PASSWORD'),
EMAIL_PORT = 587
EMAIL_USE_TLS = True
DEFAULT_FROM_EMAIL = 'Concact share Team <[email protected]>'
ACCOUNT_EMAIL_CONFIRMATION_EXPIRE_DAYS =1
ACCOUNT_EMAIL_REQUIRED = True
ACCOUNT_EMAIL_VERIFICATION = "mandatory"
ACCOUNT_LOGIN_ATTEMPTS_LIMIT = 5
ACCOUNT_LOGIN_ATTEMPTS_TIMEOUT = 86400 # 1 day. This does ot prevent admin login frombeing brut forced.
ACCOUNT_LOGOUT_REDIRECT_URL ='/accounts/login/' #or any other page
ACCOUNT_PRESERVE_USERNAME_CASING = False # reduces the delays in iexact lookups
ACCOUNT_SIGNUP_PASSWORD_ENTER_TWICE = True
ACCOUNT_UNIQUE_EMAIL=True
ACCOUNT_USERNAME_MIN_LENGTH = 5
ACCOUNT_USERNAME_REQUIRED =True
ACCOUNT_USERNAME_VALIDATORS = None


#Account Signup
ACCOUNT_FORMS = {'signup': 'socialmodule.forms.SignupForm',}

Social Account Settings
SOCIALACCOUNT_PROVIDERS = {
    'facebook': {
        'METHOD': 'oauth2',
        'SCOPE': ['email', 'public_profile', 'user_friends'],
        'AUTH_PARAMS': {'auth_type': 'reauthenticate'},
        'INIT_PARAMS': {'cookie': True},
        'FIELDS': [
            'id',
            'email',
            'name',
            'first_name',
            'last_name',
            'verified',
            'locale',
            'timezone',
            'link',
            'gender',
            'updated_time',
        ],
        'EXCHANGE_TOKEN': True,
        'LOCALE_FUNC': lambda request: 'en_US',
        'VERIFIED_EMAIL': False,
        'VERSION': 'v2.12',
    },
    'google': {
        'SCOPE': [
            'profile',
            'email',
        ],
        'AUTH_PARAMS': {
            'access_type': 'online',
        }
    }
}

authentication backends used.

AUTHENTICATION_BACKENDS = [
    'django.contrib.auth.backends.ModelBackend',
    'allauth.account.auth_backends.AuthenticationBackend',
]

Third party app used in Installed app.

  THIRD_PARTY_APPS = [
    'allauth',
    'allauth.account',
    'allauth.socialaccount',

    'allauth.socialaccount.providers.facebook',
    'allauth.socialaccount.providers.google',

    'rest_framework',
]

Answer 1

If anyone ever faces the same issue, check your settings.py file. It might have trailing commas. This was the issue for me. similar problem.

EMAIL_HOST_USER =os.getenv('HOST_EMAIL', '[email protected]')
EMAIL_HOST_PASSWORD = os.getenv('HOST_EMAIL_PASSWORD', 'PASSWORD')

remove the training " , ".