[SRU] Fix uuid shim in newer Python versions

[Corey Bryant]

[Description]
Rebuilding cinder and glance with python2.7.12 for trusty is resulting in kombu failures such as:

Traceback (most recent call last):
  ...
  File "/usr/lib/python2.7/dist-packages/kombu/utils/__init__.py", line 17, in <module>
    from uuid import UUID, uuid4 as _uuid4, _uuid_generate_random
ImportError: cannot import name _uuid_generate_random

See: http://qa.ubuntuwire.org/ftbfs/rebuilds/test-rebuild-20161216-updates-python2712-trusty.html

This backports a patch from upstream kombu to fix the uuid shim in newer Python versions. It is also backward compatible with the current version of Python in trusty.

[Test Case]
Building cinder and glance will run unit tests that will fail with Python2.7.12 without this patch.

[Regression Potential]
Low. The patch is cherry-picked from upstream.

[Brian Murray (brian-murray)]

It would have been helpful to include information about which versions of Ubuntu this is fixed in, looking at the source code for the version in Xenial it is fixed there.

[Brian Murray (brian-murray)]

Hello Corey, or anyone else affected,

Accepted kombu into trusty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/kombu/3.0.7-1ubuntu1.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Matthias Klose (doko)]

I checked that nova, oslo.messaging, glance, cinder build with the proposed python 2.7.12 update packages using this kombu version (I didn't check with the python2.7 currently in trusty).

[Corey Bryant (corey.bryant)]

I've successfully run regression on trusty-proposed and tagged this bug as verification-done.

[Launchpad Janitor (janitor)]

This bug was fixed in the package kombu - 3.0.7-1ubuntu1.1

---------------
kombu (3.0.7-1ubuntu1.1) trusty; urgency=medium

  * d/p/fix-uuid-shim.patch: Cherry-pick patch from upstream to fix uuid
    shim in newer Python versions (LP: #1656333).

 -- Corey Bryant <email address hidden> Fri, 13 Jan 2017 08:39:16 -0500

[Steve Langasek (vorlon)]

The verification of the Stable Release Update for kombu has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.