When booting biolink it exits at start-up with the exception:
File "/opt/biolink-api/biolink/app.py", line 13, in <module>
from biolink.api.restplus import api
File "/opt/biolink-api/biolink/api/restplus.py", line 4, in <module>
from flask_restplus import Api
File "/opt/biolink-api/venv/lib/python3.6/site-packages/flask_restplus/__init__.py", line 4, in <module>
from . import fields, reqparse, apidoc, inputs, cors
File "/opt/biolink-api/venv/lib/python3.6/site-packages/flask_restplus/fields.py", line 17, in <module>
from werkzeug import cached_property
ImportError: cannot import name 'cached_property'
When booting biolink it exits at start-up with the exception:
See https://github.com/jarus/flask-testing/issues/143
temporarily fixed by anchoring Werkzeug to 0.16.1