On 17/07/13 19:51, Matthew Treinish wrote: > I think that setting a requirement of >=1.3.0 is fine it should get us > around this. Watch out! There was a "mis-release" of 2.0 under the version 1.4.0. The OpenStack mirror still has this release, ever after it was pulled from pypi. openstack/requirements[1] now uses this pin jsonschema>=1.0.0,!=1.4.0,<2 Thanks, Kiall [1]: https://github.com/openstack/requirements/blob/master/requirements.txt#L23