Description of problem: In rhel6: $ rhncfg-client list /usr/share/rhn/config_common/utils.py:17: DeprecationWarning: the sha module is deprecated; use the hashlib module instead import sha
This has been already fixed in spacewalk.git master: 6c9624ab7ec3a9962030a755c86e0d1f3617d40b
Spacewalk 1.1 has been released.