Python Dictionary
{"DevOps": [,"AWS", "Jenkins", "Python", "Ansible"], "Development": ["Java", "NodeJS", ".net"], "ansible_facts": { "python": "/usr/bin/python" }}

JSON
{
  "DevOps":
  [
    "AWS",
    "Jenkins",
    "Python",
    "Ansible"
  ],
  "Development":
  [
    "Java",
    "NodeJS",
    ".net"
  ],
  "ansible_facts":
  {
    "python": "/usr/bin/python"
  }
}

YAML
DevOps:
- AWS
- Jenkins
- Python
- Ansible

Development:
- Java
- NodeJS
- .net

ansible_facts:
  python: /usr/bin/python
  version: 2.7