Python not found

Hi everyone,

I have 2 servers, both under the lastest version of ubuntu server 16.04.1 LTS.
One of them is my Ansible remote controler, and the other is my future DHCP server.

I followed the instruction on this web site:
http://www.yet.org/2014/11/ansible-dhcpd/

But my Ansible server keep tell me:

fatal: [dhcp]: FAILED! => {“changed”: false, “failed”: true, “module_stderr”: “”, “module_stdout”: “bash: /usr/bin/python: Aucun fichier ou dossier de ce type\r\n”, “msg”: “MODULE FAILURE”, “parsed”: false}

After few research i found that i had to install python 2.7, but after that my Ansibler server keep throw me the error.

Does anyone now why?
Thanks you !!