Having issues with loading session using sqlalchemy backend

[markosski]

I noticed there was a fix added for Python 3 to the way session string is handled but I'm still having problems. data = self.serializer.loads(want_bytes(val)) When this line executes in open_session I'm still not getting my session back. I poked around I noticed pickle is raising exception of type _pickle.UnpicklingError with no message to it.

Python 3.4.0 SQLAlchemy 0.9.8 + MySQL 5.5 Flask 0.10.1

[markosski]

In order to make it work I had to do the following changes.

• in class Session data column was changed to data = self.db.Column(self.db.BLOB)
• in open_session method unserializing changed to data = self.serializer.loads(val)
• in open_session when testing for expiration added test for existence of vlaue if saved_session and saved_session.expiry != None and saved_session.expiry <= datetime.utcnow(): This is because upon calling session.clear() in application self.get_expiration_time(app, session) returns None and expiry will be set to Null in database.

[mcrowson]

This issue was moved to mcrowson/flask-session#8

[Lxstr]

Fixed post 0.6.0