Example no longer works with latest version of pyjwt[crypto]

[nickstelzenmuller]

I got the error message "The JWK Set did not contain any usable keys" after installing the latest version of pyjwt[crypto] (v2.6.0) .
When I rolled back to pyjwt=2.3, and install the cryptography package separately (v38) this sample project works again.
I haven't narrowed down which version of pyjwt or cryptography actually caused the problem.

[annisat]

I ran into the similar problem, though my message is jwt.exceptions.DecodeError: Invalid payload string: 'utf-8' codec can't decode byte 0xd6 in position 1: invalid continuation byte.
I seem to have found the issue here. I dug into the decoding process of PyJWT. PyJWT is splitting the JWT with three segments (JWT default), but the token I got has five.
https://community.auth0.com/t/jwt-verifier-exception-com-auth0-jwt-exceptions-jwtdecodeexception-the-token-was-expected-to-have-3-parts-but-got-5/98398

However, I haven't yet figure out how to fix this. Maybe the web frontend should send a different token?

EDIT: I think we should follow this instruction for the right JWT setting.
https://developer.auth0.com/resources/code-samples/full-stack/hello-world/basic-access-control/spa/react-javascript/fastapi-python