This release has broken some of the decorators (all I have encountered, but not necessarily exclusive to decorators).
File "/usr/local/lib/python3.6/site-packages/flask_security/decorators.py", line 61, in _check_token
user = _security.login_manager.request_callback(request)
AttributeError: 'LoginManager' object has no attribute 'request_callback'
Flask-Login has released v0.5.0 on 2020-02-09.
This release has broken some of the decorators (all I have encountered, but not necessarily exclusive to decorators).
A more specific version check might be needed: https://github.com/mattupstate/flask-security/blob/develop/setup.py#L50
For those having the same issue add a fixed dependency to
Flask-Login
<= 0.5.0 e.g.:(0.4.1 was the greatest version < 0.5.0 at the time of writing)
I will check back with more details (and further testing) once I find time and perhaps submit a PR.