# python --version
Python 2.6.6
# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-beta
# ./install_packages 
This script will install the katello packages on the current machine.
   - Ensuring we are in an expected directory.
   - Creating a Repository File
   - Checking to see if Katello is already installed.
   - katello-headpin-all is not yet installed, installing it.
   - Removing the repository file.

Install is complete. Please run katello-configure.

Verified:

* candlepin-0.7.19-1.el6_3.noarch
* candlepin-tomcat6-0.7.19-1.el6_3.noarch
* katello-candlepin-cert-key-pair-1.0-1.noarch
* katello-certs-tools-1.2.1-1h.el6_3.noarch
* katello-cli-1.2.4-2h.el6_3.noarch
* katello-cli-common-1.2.4-2h.el6_3.noarch
* katello-common-1.2.6-2h.el6_3.noarch
* katello-configure-1.2.3-1h.el6_3.noarch
* katello-glue-candlepin-1.2.6-2h.el6_3.noarch
* katello-headpin-1.2.6-2h.el6_3.noarch
* katello-headpin-all-1.2.6-2h.el6_3.noarch
* katello-selinux-1.2.1-1h.el6_3.noarch
* thumbslug-0.0.27-1.el6_3.noarch
* thumbslug-selinux-0.0.27-1.el6_3.noarch

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2013-0544.html