Description of problem:
Ansible 1.5.3-1.el6 requires python-setuptools to function. After updateing some of my servers I noticed that ansible did not function anymore. 
Error-Message:
Traceback (most recent call last):
  File "/usr/bin/ansible-playbook", line 22, in <module>
    import pkg_resources
ImportError: No module named pkg_resources

The reason was that the python-setuptools package was not installed on those machines.

Version-Release number of selected component (if applicable):
- ansible.noarch 1.5.3-1.el6

How reproducible:
Install ansible on a system on which python-setuptools was not installed before.

Steps to Reproduce:
1. Install ansible on a system where python-setuptools was not installed before.
2. Exec /usr/bin/ansible-playbook to get the error message and check yum deplist ansible for missing dependency.

Actual results:
# yum deplist ansible
Loaded plugins: fastestmirror, priorities, security
Loading mirror speeds from cached hostfile
 * base: centos.intergenia.de
 * epel: mirror.fraunhofer.de
 * extras: mirror.skylink-datacenter.de
 * updates: mirror.skylink-datacenter.de
85 packages excluded due to repository priority protections
Finding dependencies:
package: ansible.noarch 1.5.3-1.el6
  dependency: python-httplib2
   provider: python-httplib2.noarch 0.7.7-1.el6
  dependency: python-paramiko
   provider: python-paramiko.noarch 1.7.5-2.1.el6
  dependency: python-jinja2
   provider: python-jinja2.x86_64 2.2.1-1.el6
  dependency: python-crypto2.6
   provider: python-crypto2.6.x86_64 2.6.1-1.el6
  dependency: /usr/bin/python
   provider: python.x86_64 2.6.6-51.el6
   provider: python.x86_64 2.6.6-52.el6
  dependency: python(abi) = 2.6
   provider: python.x86_64 2.6.6-51.el6
   provider: python.x86_64 2.6.6-52.el6
  dependency: PyYAML
   provider: PyYAML.x86_64 3.10-3.el6
  dependency: python-keyczar

Expected Results:
# yum deplist ansible
Loaded plugins: fastestmirror, priorities, security
Loading mirror speeds from cached hostfile
 * base: centos.intergenia.de
 * epel: mirror.fraunhofer.de
 * extras: mirror.skylink-datacenter.de
 * updates: mirror.skylink-datacenter.de
85 packages excluded due to repository priority protections
Finding dependencies:
package: ansible.noarch 1.5.3-1.el6
  dependency: python-httplib2
   provider: python-httplib2.noarch 0.7.7-1.el6
  dependency: python-paramiko
   provider: python-paramiko.noarch 1.7.5-2.1.el6
  dependency: python-jinja2
   provider: python-jinja2.x86_64 2.2.1-1.el6
  dependency: python-crypto2.6
   provider: python-crypto2.6.x86_64 2.6.1-1.el6
  dependency: /usr/bin/python
   provider: python.x86_64 2.6.6-51.el6
   provider: python.x86_64 2.6.6-52.el6
  dependency: python(abi) = 2.6
   provider: python.x86_64 2.6.6-51.el6
   provider: python.x86_64 2.6.6-52.el6
  dependency: PyYAML
   provider: PyYAML.x86_64 3.10-3.el6
  dependency: python-keyczar
  dependency: python-setuptools
   provider: python-setuptools.noarch 0.6.10-3.el6