Have you worked with Single Sign-On (SSO) systems in your projects?

Yes, I have worked with Single Sign-On (SSO) systems in Python projects. This is usually implemented through protocols like OAuth2, OpenID Connect, or SAML.

For example, to integrate with OAuth2, libraries such as authlib or django-allauth in Django can be used. They allow configuring authentication through third-party providers (Google, Facebook, corporate SSO).

An example of using authlib for an OAuth2 client:

from authlib.integrations.requests_client import OAuth2Session

client = OAuth2Session(client_id, client_secret, redirect_uri=redirect_uri)
authorization_url, state = client.create_authorization_url(auth_url)

# Redirect the user to authorization_url

# After redirect, get the code and exchange it for a token
token = client.fetch_token(token_url, code=authorization_response_code)

It is also important to ensure security, session management, and proper token handling. In corporate systems, SAML is often used, for which libraries like python3-saml are available.

Thus, experience with SSO includes protocol configuration, integration with providers, and ensuring authentication security.