"No module named raven.contrib.flask" upon running tests

[mark-henry]

On osx:

1. Setup new python virtualenv
2. run pip install -r requirements.txt
3. Setup with fab setup_python_macos
4. run unit tests with fab test

I saw:
Traceback (most recent call last):
File "tests.py", line 6, in
from fbone import create_app
File "/Users/mark.henry/Desktop/actionteam/fbone/init.py", line 3, in
from app import create_app
File "/Users/mark.henry/Desktop/actionteam/fbone/app.py", line 6, in
from user import User
File "/Users/mark.henry/Desktop/actionteam/fbone/user/init.py", line 3, in
from models import User
File "/Users/mark.henry/Desktop/actionteam/fbone/user/models.py", line 10, in
from fbone.extensions import db
File "/Users/mark.henry/Desktop/actionteam/fbone/extensions.py", line 10, in
from raven.contrib.flask import Sentry
ImportError: No module named raven.contrib.flask

[Amanimasila]

I still have error even after install this module