Comment 14 for bug 1657459

Phil, there is a fix for this. The requirements for Ocata are frozen and will not change, and OpenStack also publishes 'upper-constraints.txt' which you can provide to pip using `-c`. For example

   curl -O https://raw.githubusercontent.com/openstack/requirements/master/upper-constraints.txt
   pip install . -c upper-constraints.txt

WebOb 1.7.x is not in upper-constraints and thus this should solve your problem. It should also ensure your software is more stable as these are the versions OpenStack *actually* tests against.