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[OpenStack Infra <1798224@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/611204
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=b9bc20ed3958fba5b49015b43e314a41e904fc1b
Submitter: Zuul
Branch:    master

commit b9bc20ed3958fba5b49015b43e314a41e904fc1b
Author: Takashi NATSUME <natsume.takashi@xxxxxxxxxxxxx>
Date:   Tue Oct 16 14:14:56 2018 +0900

    Fix best_match() deprecation warning
    
    wsgi call to best_match() generates the following warning:
    
    DeprecationWarning: The behavior of .best_match for the Accept classes
    is currently being maintained for backward compatibility,
    but the method will be deprecated in the future,
    as its behavior is not specified in
    (and currently does not conform to) RFC 7231.
    
    See the following URL for more information about deprecation.
    
    https://docs.pylonsproject.org/projects/webob/en/stable/api/webob.html#webob.acceptparse.AcceptValidHeader.best_match
    
    Simlar changes in the wsgi best language code as well,
    except new call is to lookup().
    
    Change-Id: Ib93ffffd3f28aa6d53a0a4eed5aeee94900cb073
    Closes-Bug: #1798224


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1798224

Title:
  DeprecationWarning: The behavior of .best_match for the Accept classes
  is currently being maintained for backward compatibility, but the
  method will be deprecated in the future

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  When executing 'tox -e py35', the following deprecation warning is shown.
  It should be fixed.

  2018-10-16 03:36:49.117553 | ubuntu-xenial | {5} nova.tests.unit.api.openstack.compute.test_disk_config.DiskConfigTestCaseV21.test_update_server_override_auto [0.544275s] ... ok
  2018-10-16 03:36:49.117626 | ubuntu-xenial |
  2018-10-16 03:36:49.117666 | ubuntu-xenial | Captured stderr:
  2018-10-16 03:36:49.117703 | ubuntu-xenial | ~~~~~~~~~~~~~~~~
  (snipped...)
  2018-10-16 03:36:49.118228 | ubuntu-xenial |     b'/home/zuul/src/git.openstack.org/openstack/nova/.tox/py35/lib/python3.5/site-packages/webob/acceptparse.py:1379: DeprecationWarning: The behavior of .best_match for the Accept classes is currently being maintained for backward compatibility, but the method will be deprecated in the future, as its behavior is not specified in (and currently does not conform to) RFC 7231.'
  2018-10-16 03:36:49.118288 | ubuntu-xenial |     b'  DeprecationWarning,'
  2018-10-16 03:36:49.118319 | ubuntu-xenial |     b''

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