flask_sso.SSOAttributeError

[zurgeg]

Whenever I run my code the code from the Docs it gives me this:

flask_sso.SSOAttributeError

My code is

from flask import Flask, session, redirect
from flask_sso import SSO
app = Flask(__name__)
sso = SSO(app=app)
SSO_ATTRIBUTE_MAP = {
    'ADFS_AUTHLEVEL': (False, 'authlevel'),
    'ADFS_GROUP': (True, 'group'),
    'ADFS_LOGIN': (True, 'nickname'),
    'ADFS_ROLE': (False, 'role'),
    'ADFS_EMAIL': (True, 'email'),
    'ADFS_IDENTITYCLASS': (False, 'external'),
    'HTTP_SHIB_AUTHENTICATION_METHOD': (False, 'authmethod'),
}

app.config['SSO_ATTRIBUTE_MAP'] = SSO_ATTRIBUTE_MAP
@sso.login_handler
def login_callback(user_info):
    """Store information in session."""
    session['user'] = user_info
@app.route('/')
def index():
    """Display user information or force login."""
    if 'user' in session:
        return 'Welcome {name}'.format(name=session['user']['nickname'])
    return redirect(app.config['SSO_LOGIN_URL'])
app.run(host='0.0.0.0')

Can anyone help?
Thanks in advance.

[lnielsen]

Unfortunately, the project is unmaintained for quite some time now.