Ubuntu 18.10 on Linode installation

[tmcguirefl]

I didn't want a lot of python 2.7 code on my mac so I opened up a linode cloud installation with Ubuntu 18.10 image. I didn't record the exact steps I took to get scan up and running but by quickly going through my linux shell history this is approximately what I did:
Step 1:
pull down a scan clone from the git repository

Step 2:
follow the bootstrap.sh calls and ignore the vagrant/virtualbox commands
this seems to pull in all the necessary items for Flask and the "scan" source code

Step 3:
when you run:

python app.py there are a couple of problems that need to be addressed:

flask AttributeError: 'LoginManager' object has no attribute 'token_loader'

vi /usr/local/lib/python2.7/dist-packages/flask_security/core.py

comment out line 396: lm.token_loader(_token_loader)

vi /usr/local/lib/python2.7/dist-packages/flask_security/decorators.py

you need to change the function call
current_user.is_authenticated()

to an attribute usage:
current_user.is_authenticated

After making those edits everything comes up on scan on port 5000 when you run python app.py from the scan directory.

PS. I may have had to play with the PYTHONPATH variable to get alembic/env.py to run when doing:
alembic upgrade head