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[OpenStack Infra <1744160@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/538263
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=ace2e1088cda4ae4dfde93a8ffdafde2d33262cb
Submitter: Zuul
Branch:    master

commit ace2e1088cda4ae4dfde93a8ffdafde2d33262cb
Author: ChangBo Guo(gcb) <eric.guo@xxxxxxxxxxxx>
Date:   Fri Jan 26 23:03:39 2018 +0800

    Handle TZ change in iso8601 >=0.1.12
    
    The iso8601 lib introduced a change such that if running on python
    3.2 or later it internally uses the python timezone information
    instead of its own implementation. This does not change direct
    date handling, but when converting this value there is a slight
    difference where now python 2.x will show UTC times as "UTC",
    but on python 3 they will end up with "UTC+00:00".
    
    The to_primitive call for DateTime fields was doing an exact match
    on "UTC" to determine whether to include "Z" in the resulting string.
    This updates that handling to recognize either of the new values
    
    Closes-bug: #1744160
    
    Change-Id: I505434facc7adc4a479f67eeedb31cf7b4bf7caf


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

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https://bugs.launchpad.net/bugs/1744160

Title:
  Change in iso8601 0.1.12 date format breaks parsing with py35

Status in Cinder:
  Fix Released
Status in Glance:
  In Progress
Status in OpenStack Identity (keystone):
  Fix Released
Status in Manila:
  In Progress
Status in OpenStack Compute (nova):
  Fix Released
Status in oslo.utils:
  In Progress
Status in oslo.versionedobjects:
  Fix Released

Bug description:
  New package of iso8601 returns string in the format:

  '2012-02-14T20:53:07UTC+00:00'

  instead of:

  
  '2012-02-14T20:53:07Z'

  
  This is resulting in date string comparison failures and timeutils.parse_isotime errors with:

  ValueError: Unable to parse date string '2014-08-08T00:00:00UTC+00:00'

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