Description of problem:
the current version of python-boto available in epel does not contain cloudsearch2.  Amazon no longer supports cloudsearch(1) for new accounts.

from the amazon documentation:
If you created Amazon CloudSearch domains prior to the launch of the 2013-01-01 API, you can choose which API version to use when you create a new domain. To create a 2013-01-01 domain through the console, select the 2013-01-01 version in the Create Domain Wizard. To create a 2013-01-01 domain with the command line tools, download and install the updated command line tools (cloud-search-tools-v2) and run the cs-create-domain command.

Note
The cs-create-domain command does not enable you to select the API version. To create and interact with 2013-01-01 domains, you must use the v2 tools. To create and interact with 2011-02-01 domains, you must use the v1 tools.

cloudsearch2 is available in python-boto 2.28 or higher 

Version-Release number of selected component (if applicable):
python-boto-2.27.0

How reproducible:
every time

Steps to Reproduce:
1. create new aws account
2. yum install python-boto
3. python
4. import boto.cloudsearch
5. cs = boto.cloudsearch.connect_to_region("us-east-1", aws_access_key_id='..', aws_secret_access_key='..')
6. cs.describe_domain()

Actual results:
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/site-packages/boto/cloudsearch/layer1.py", line 417, in describe_domains
    list_marker='DomainStatusList')
  File "/usr/lib/python2.7/site-packages/boto/cloudsearch/layer1.py", line 98, in get_response
    raise self.ResponseError(response.status, response.reason, body)
boto.exception.BotoServerError: BotoServerError: 401 Unauthorized
<ErrorResponse xmlns="http://cloudsearch.amazonaws.com/doc/2011-02-01/">
  <Error>
    <Type>Sender</Type>
    <Code>NotAuthorized</Code>
  </Error>
  <RequestId>5e9dac67-19a4-11e4-8170-cf737719d6fb</RequestId>
</ErrorResponse>

Expected results:
listing of domain information

Additional info:
>>> import boto.cloudsearch2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named cloudsearch2

also note older accounts that have previously used cloudsearch continue to work with boto.cloudsearch