[Bug 1465549] [NEW] Plainbox tests are broken by PEP 440 incompatible Debian/Ubuntu packages

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When running unit tests on my vivid VM I've noticed that many tests fail
because there are extra lines printed by pkg_resources:

- /usr/lib/python3/dist-packages/pkg_resources/__init__.py:2512: PEP440Warning: 'apturl (0.5.2ubuntu6)' is being parsed as a legacy, non PEP 440, version. You may find odd behavior and sort order. In particular it will be sorted as less than 0.0. It is recommend to migrate to PEP 440 compatible versions.
-   PEP440Warning,
- /usr/lib/python3/dist-packages/pkg_resources/__init__.py:2512: PEP440Warning: 'python-apt (0.9.3.11build1)' is being parsed as a legacy, non PEP 440, version. You may find odd behavior and sort order. In particular it will be sorted as less than 0.0. It is recommend to migrate to PEP 440 compatible versions.
-   PEP440Warning,
- /usr/lib/python3/dist-packages/pkg_resources/__init__.py:2512: PEP440Warning: 'ufw (0.34-rc-0ubuntu5)' is being parsed as a legacy, non PEP 440, version. You may find odd behavior and sort order. In particular it will be sorted as less than 0.0. It is recommend to migrate to PEP 440 compatible versions.
-   PEP440Warning,


I've discussed this with Barry Warsaw and a few other people and the result is that yes, it's a bug in _each_ of those packages and those should be fixed.

I think there are two things we need to do:
 - a long term plan should be based on fixing all of those one by one upstream in debian/ubuntu
 - a short term plan should be to prevent those additional lines from break our tests

** Affects: plainbox
     Importance: Undecided
         Status: Confirmed

** Affects: apturl (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: python-apt (Ubuntu)
     Importance: Undecided
         Status: Fix Committed

** Affects: ufw (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: patch
-- 
Plainbox tests are broken by PEP 440 incompatible Debian/Ubuntu packages
https://bugs.launchpad.net/bugs/1465549
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