Unfortunately, we currently only support 0.7.x and are currently working
on supporting >=0.8.x in icehouse:

https://github.com/openstack/requirements/blob/a0acd133f3a005c81e555eadde9ad0a7f0236c0e
/global-requirements.txt#L94

If you have pip available, you might be able to upgrade with:

  pip install --upgrade "SQLAlchemy>=0.7.8,<=0.7.99"

** Changed in: keystone
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1254737

Title:
  ImportError: cannot import name AddConstraint

Status in OpenStack Identity (Keystone):
  Invalid

Bug description:
  [Environment]
  OS: RedHat 6.4

  [Problems]:

  When I install the Identity Service, after I type "openstack-db --init
  --service keystone --password KEYSTONE_DBPASS", it will show as
  follows:

  [root@controller yum.repos.d]# openstack-db --init --service keystone 
--password KEYSTONE_DBPASS
  Please enter the password for the 'root' MySQL user: 
  Verified connectivity to MySQL.
  Creating 'keystone' database.
  Updating 'keystone' database password in /etc/keystone/keystone.conf
  Initializing the keystone database, please wait...
  Traceback (most recent call last):
    File "/usr/bin/keystone-manage", line 37, in <module>
      from keystone import cli
    File "/usr/lib/python2.6/site-packages/keystone/cli.py", line 21, in 
<module>
      from migrate import exceptions
    File "/usr/lib/python2.6/site-packages/migrate/__init__.py", line 31, in 
<module>
      from migrate.changeset import *
    File "/usr/lib/python2.6/site-packages/migrate/changeset/__init__.py", line 
21, in <module>
      from migrate.changeset.schema import *
    File "/usr/lib/python2.6/site-packages/migrate/changeset/schema.py", line 
15, in <module>
      from migrate.changeset.databases.visitor import (get_engine_visitor,
    File 
"/usr/lib/python2.6/site-packages/migrate/changeset/databases/visitor.py", line 
6, in <module>
      from migrate.changeset import ansisql
    File "/usr/lib/python2.6/site-packages/migrate/changeset/ansisql.py", line 
22, in <module>
      from sqlalchemy.schema import AddConstraint, DropConstraint
  ImportError: cannot import name AddConstraint
  ERROR 1146 (42S02) at line 1: Table 'keystone.migrate_version' doesn't exist
  Final sanity check failed.
  Please file a bug report on bugzilla.redhat.com against the 
openstack-keystone package.

  Which reason leads to this problem? Can someone help me? Thank you !

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