Devstack fails with ValueError when trying to parse Tempest tox.ini

[Ryan Hsu]

Currently, Devstack fails at stacking when getting to lib/tempest trying to run tox operations on Tempest's tox.ini. The following error is seen:

Traceback (most recent call last):
  File "/usr/local/bin/tox", line 11, in <module>
    sys.exit(cmdline())
  File "/usr/local/lib/python2.7/dist-packages/tox/session.py", line 38, in main
    config = prepare(args)
  File "/usr/local/lib/python2.7/dist-packages/tox/session.py", line 26, in prepare
    config = parseconfig(args)
  File "/usr/local/lib/python2.7/dist-packages/tox/config.py", line 229, in parseconfig
    parseini(config, inipath)
  File "/usr/local/lib/python2.7/dist-packages/tox/config.py", line 729, in __init__
    self.make_envconfig(name, section, reader._subs, config)
  File "/usr/local/lib/python2.7/dist-packages/tox/config.py", line 760, in make_envconfig
    res = meth(env_attr.name, env_attr.default)
  File "/usr/local/lib/python2.7/dist-packages/tox/config.py", line 893, in getdict_setenv
    definitions = self._getdict(value, default=default, sep=sep)
  File "/usr/local/lib/python2.7/dist-packages/tox/config.py", line 905, in _getdict
    name, rest = line.split('=', 1)
ValueError: need more than 1 value to unpack

Root cause is due to Tox releasing 2.3.0 today which has some behavior that causes the broken parsing. Reverting to 2.2.1 fixes this.

[Matt Riedemann (mriedem)]

Upstream tox bug: https://bitbucket.org/hpk42/tox/issues/294/tox-23-regression

[Matt Riedemann (mriedem)]

(2:18:41 PM) clarkb: we deleted new images as the workaround

[Matt Riedemann (mriedem)]

http://logstash.openstack.org/#dashboard/file/logstash.json?query=message:%5C%22name,%20rest%20=%20line.split('=',%201)%5C%22%20AND%20tags:%5C%22console%5C%22

[Bob Ball (bob-ball)]

tox 2.3.1 has been released which appears to fix this issue

[OpenStack Infra (hudson-openstack)]

Change abandoned by Ryan Hsu (<email address hidden>) on branch: master
Review: https://review.openstack.org/256620
Reason: Aww :( Well thanks to everyone who helped to review!

[Davanum Srinivas (DIMS) (dims-v)]

Fixed in https://review.openstack.org/#/c/260009/

[Sean Dague (sdague)]

This devstack bug was last updated over 180 days ago, as devstack
is a fast moving project and we'd like to get the tracker down to
currently actionable bugs, this is getting marked as Invalid. If the
issue still exists, please feel free to reopen it.