Flask-Session can't import want_bytes from itsdangerous

Question

I am using Flask-Session and recently installed or upgraded to itsdangerous 1.0.0. Now I get the error ImportError: cannot import name \'want_bytes\'. Why is this e

Answer 1

The file structure of the itsdangerous package has changed. The function resides in the session.py file. Changing the import statements from:

from itsdangerous import Signer, BadSignature, want_bytes

to

from itsdangerous import Signer, BadSignature
from itsdangerous.encoding import want_bytes

works for me.