Comment 11 for bug 1856485

FYI: Running openstack (master) with python2 will not work for long any more since in ussuri we dropped support for it:

https://governance.openstack.org/tc/goals/selected/ussuri/drop-py27.html

Most projects did not willingly broke python2 compatibility but dropped python2 gate jobs, so it's only a question of time when it will become actually broken.

On the other hand the train release is still supposed to work with python2, so that maybe a workaround until calico makes the changes mentioned by Neil above.