python-crypto mismatch on CentOS 6.4 when using XenServer-Core

[Bob Ball]

The change at https://review.openstack.org/#/c/40431/ attempted to fix the original bug at https://review.openstack.org/#/c/40431/ (which was that python-lxml was forceably uninstalled, removing xen and xenserver-core) but a new run of devstack on a fresh machine shows that it still does not work due to the python-crypto package:

+ keystone endpoint-create --region RegionOne --service_id --publicurl http://10.81.2.15:5000/v2.0 --adminurl http://10.81.2.15:35357/v2.0 --internalurl http://10.81.2.15
:5000/v2.0
Traceback (most recent call last):
  File "/usr/bin/keystone", line 6, in <module>
    from keystoneclient.shell import main
  File "/opt/stack/python-keystoneclient/keystoneclient/shell.py", line 31, in <module>
    from keystoneclient.contrib.bootstrap import shell as shell_bootstrap
  File "/opt/stack/python-keystoneclient/keystoneclient/contrib/bootstrap/shell.py", line 2, in <module>
    from keystoneclient.v2_0 import client
  File "/opt/stack/python-keystoneclient/keystoneclient/v2_0/__init__.py", line 2, in <module>
    from keystoneclient.v2_0.client import Client
  File "/opt/stack/python-keystoneclient/keystoneclient/v2_0/client.py", line 18, in <module>
    from keystoneclient import httpclient
  File "/opt/stack/python-keystoneclient/keystoneclient/httpclient.py", line 18, in <module>
    import keyring
  File "/usr/lib/python2.6/site-packages/keyring/__init__.py", line 9, in <module>
    from core import (set_keyring, get_keyring, set_password, get_password,
  File "/usr/lib/python2.6/site-packages/keyring/core.py", line 166, in <module>
    init_backend()
  File "/usr/lib/python2.6/site-packages/keyring/core.py", line 65, in init_backend
    keyrings.sort(key = lambda x: -x.supported())
  File "/usr/lib/python2.6/site-packages/keyring/core.py", line 65, in <lambda>
    keyrings.sort(key = lambda x: -x.supported())
  File "/usr/lib/python2.6/site-packages/keyring/backends/file.py", line 172, in supported
    __import__('Crypto.Random')
  File "/usr/lib64/python2.6/site-packages/Crypto/Random/__init__.py", line 29, in <module>
    from Crypto.Random import _UserFriendlyRNG
  File "/usr/lib64/python2.6/site-packages/Crypto/Random/_UserFriendlyRNG.py", line 38, in <module>
    from Crypto.Random.Fortuna import FortunaAccumulator
  File "/usr/lib64/python2.6/site-packages/Crypto/Random/Fortuna/FortunaAccumulator.py", line 39, in <module>
    import FortunaGenerator
  File "/usr/lib64/python2.6/site-packages/Crypto/Random/Fortuna/FortunaGenerator.py", line 34, in <module>
    from Crypto.Util.number import ceil_shift, exact_log2, exact_div
  File "/usr/lib64/python2.6/site-packages/Crypto/Util/number.py", line 56, in <module>
    if _fastmath is not None and not _fastmath.HAVE_DECL_MPZ_POWM_SEC:
AttributeError: 'module' object has no attribute 'HAVE_DECL_MPZ_POWM_SEC'

[root@jgourlay devstack]# rpm -q python-crypto
python-crypto-2.0.1-22.el6.x86_64

Requirement already satisfied (use --upgrade to upgrade): pycrypto>=2.6 in /usr/lib64/python2.6/site-packages (from -r requirements/global-requirements.txt (line 45))

[Launchpad Janitor (janitor)]

[Expired for devstack because there has been no activity for 60 days.]