Kombu was been updated to work with the new msgpack: https://github.com/celery/kombu/pull/143 a while back, but devstack installed kombu from a system package and got an old version (1.4.3 on my precise dev vm). The latest version of kombu on PyPI is 2.5.10.
Kombu was been updated to work with the new msgpack: https:/ /github. com/celery/ kombu/pull/ 143 a while back, but devstack installed kombu from a system package and got an old version (1.4.3 on my precise dev vm). The latest version of kombu on PyPI is 2.5.10.