newbie: Error while running Ansible API from the doc

[Aprameya NDS]

Hi,

I am a newbie to the Ansible Python API thing and i am trying out to run the code given in the Ansible Python API documentation (Link: http://docs.ansible.com/ansible/developing_api.html Python API 2.0)

I get the following error:

PLAY [Ansible Cli PoC] *********************************************************

TASK [setup] *******************************************************************
> /usr/lib/python2.6/site-packages/ansible/plugins/connection/ssh.py(537)_run()
-> if C.HOST_KEY_CHECKING:
(Epdb) c
fatal: [172.16.0.234]: FAILED! => {"failed": true, "msg": "using -c ssh on certain older ssh versions may not support ControlPersist, set ANSIBLE_SSH_ARGS=\"\" (or ssh_args in [ssh_connection] section of the config file) before running again"}

NO MORE HOSTS LEFT *************************************************************
cleanup
<ansible.executor.task_queue_manager.TaskQueueManager object at 0x116dc10>


Can you please let me know how to proceed with this?