Ansible and playbook variables

Hi,

I running a play book via a python program.

I pass extra_vars when initialising the Playbook object but the variables in here I cannot access in my playbook.

So I use:

import ansible.playbook

pb = ansible.playbook.Playbook{ …, …, extra_vars{a:b}

pb.run()

I have test.yml as my playbook and within here I have this: