Unpleasant warning
Created by: tiagofrepereira2012
This package is raising this unpleasant warning every time that you run ./bin/bob_dbmanage.py --help
bob.db.biosecure.test.test_driver_api ... /idiap/group/torch5spro/conda/envs/bob-2.2.0-py27_0/lib/python2.7/site-packages/sqlalchemy/sql/default_comparator.py:153: SAWarning: The IN-predicate on "client.sgroup" was invoked with an empty sequence. This results in a contradiction, which nonetheless can be expensive to evaluate. Consider alternative strategies for improved performance.
'strategies for improved performance.' % expr)