I think we can confirm this, we're currently testing webob 1.5.1 in the gate but the upper-constraints proposal to include webob 1.6.0 is failing on the same thing:
http://logs.openstack.org/49/288849/15/check/gate-tempest-dsvm-full/4722c5a/logs/devstacklog.txt.gz#_2016-03-18_07_06_03_369
I think we can confirm this, we're currently testing webob 1.5.1 in the gate but the upper-constraints proposal to include webob 1.6.0 is failing on the same thing:
http:// logs.openstack. org/49/ 288849/ 15/check/ gate-tempest- dsvm-full/ 4722c5a/ logs/devstacklo g.txt.gz# _2016-03- 18_07_06_ 03_369