This bug was fixed in the package unattended-upgrades - 1.5ubuntu2
--------------- unattended-upgrades (1.5ubuntu2) cosmic; urgency=medium
* Reopen Cache after commit() even when frontend locking is supported. This fixes build and operation with latest python-apt.
-- Balint Reczey <email address hidden> Tue, 28 Aug 2018 15:46:25 +0200
This bug was fixed in the package unattended-upgrades - 1.5ubuntu2
---------------
unattended-upgrades (1.5ubuntu2) cosmic; urgency=medium
* Reopen Cache after commit() even when frontend locking is supported.
This fixes build and operation with latest python-apt.
-- Balint Reczey <email address hidden> Tue, 28 Aug 2018 15:46:25 +0200