This bug was fixed in the package python-oslo.config - 1:6.4.0-0ubuntu2
--------------- python-oslo.config (1:6.4.0-0ubuntu2) cosmic; urgency=medium
* d/p/py3-ensure-iter-list.patch: Ensure ConfigOpts __iter__ uses list(d.keys()) as d.keys() no longer returns a copy of keys in py3 (LP: #1796163).
-- Corey Bryant <email address hidden> Thu, 04 Oct 2018 15:52:48 -0400
This bug was fixed in the package python-oslo.config - 1:6.4.0-0ubuntu2
---------------
python-oslo.config (1:6.4.0-0ubuntu2) cosmic; urgency=medium
* d/p/py3- ensure- iter-list. patch: Ensure ConfigOpts __iter__ uses
list(d.keys()) as d.keys() no longer returns a copy of keys in py3
(LP: #1796163).
-- Corey Bryant <email address hidden> Thu, 04 Oct 2018 15:52:48 -0400