Can't upload a fix, because celery FTBFS due to bug in kombu - see #806334.
Pushed proposed fix to git instead. If you can check this and tell me if it looks OK that would be appreciated. https://anonscm.debian.org/cgit/python-modules/packages/celery.git/commit/?id=f4709f76ef8274959cc7f1e4521cf5e4934f4562 Thanks -- Brian May <[email protected]>

