386176d77d
I created a tox PR[1] to add native support for constraints. The answer was basically "use deps". I tested it locally with shade and tox and it does indeed seem to do what we want. Use shade as a guinea pig before rolling this out wider. [1] https://github.com/tox-dev/tox/pull/642 Change-Id: I450dd513d7e1f881db764b11dcd6f9072c0c369c Depends-On: Id61ae52d48b28cfc2221cb556a1c1f7c6dfd60dd