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[OpenStack Infra <1744160@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/535700
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=11222bbf777a9418b9262bf56a61e5f3aa5f6501
Submitter: Zuul
Branch:    master

commit 11222bbf777a9418b9262bf56a61e5f3aa5f6501
Author: deepak_mourya <deepak.mourya@xxxxxxxxxxxxxxxxxx>
Date:   Fri Jan 19 15:36:18 2018 +0530

    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
    
    Change-Id: I426cf42ddcf6e8aa2d43f286eb76908670cc8d16
    Closes-bug: #1744160


** Changed in: nova
       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:
  In Progress
Status in Glance:
  In Progress
Status in OpenStack Identity (keystone):
  In Progress
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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