Code review comment for lp:~raharper/curtin/trunk.fix-tox-errors

I've just verified that what changed was a change in behavior from pylint from 1.5.4 to 1.5.5 (which was uploaded 2016-03-21) https://pypi.python.org/pypi/pylint .

this is the crux of using tox.
Its obnoxious when some upload somewhere on the internet starts breaking your c-i.

The thing we could do is set the version of pylint that is installed explicitly.
That can be done with something like:
=== modified file 'tox.ini'
--- tox.ini 2016-03-18 14:05:02 +0000
+++ tox.ini 2016-03-30 23:43:34 +0000
@@ -38,7 +38,7 @@
 # set basepython because tox 1.6 (trusty) does not support generated environments
 basepython = python3
 deps = {[testenv]deps}
- pylint
+ pylint==1.5.4
     bzr+lp:simplestreams
 commands = {envpython} -m pylint --errors-only {posargs:curtin tests/vmtests}