Doesn't record objects in the session, you would need to explicitly call `session.save()` in order to save any entities. Also, if an entity falls out of all scopes, it is deallocated and you need to fetch from Redis again.

null_session.py

'''
The Josiah Carlson recommended way of replacing the session object. This code
should be run prior to any subsequent imports/uses of the session object.

Released into the public domain.
'''

from rom import util

class NoSession(util.Session):
    def add(self, obj):
        "Don't record any objects in the session."
        return

util.session = NoSession()