This bug was fixed in the package python-cassandra-driver - 2.5.1-1ubuntu0.1
--------------- python-cassandra-driver (2.5.1-1ubuntu0.1) xenial; urgency=high
* Cherry-pick upstream commit to fix compat with python 2.7.12 - weakref.ref no longer accepts kwargs. (LP: #1603436)
-- Dimitri John Ledkov <email address hidden> Mon, 25 Jul 2016 12:17:29 +0100
This bug was fixed in the package python- cassandra- driver - 2.5.1-1ubuntu0.1
--------------- cassandra- driver (2.5.1-1ubuntu0.1) xenial; urgency=high
python-
* Cherry-pick upstream commit to fix compat with python 2.7.12 -
weakref.ref no longer accepts kwargs. (LP: #1603436)
-- Dimitri John Ledkov <email address hidden> Mon, 25 Jul 2016 12:17:29 +0100