ansible oc module failure

This ansible(via 2.4.1 Centos 7) task:
    oc:
     state: present
     token: "{{token.stdout}}"
     validate_certs: false
     inline:
       data:
         .dockercfg: eyJkb2NrZXIubGFiLmMtY29yLmNvbTo1MDAwIjp7InVzZXJuYW1lIjoibWRjIiwicGFzc3dvcmQiOiJuY3ViZXN5cyIsImVtYWlsIjoibnVsbEBsb2NhaG9zdCIsImF1dGgiOiJiV1JqT201amRXSmxjM2x6In19
       kind: Secret
       metadata:
         creationTimestamp: null
         name: mdc-docker
       type: kubernetes.io/dockercfg

ends up with this error:
The full traceback is:
Traceback (most recent call last):
  File "/tmp/ansible_ovBTK3/ansible_module_oc.py", line 470, in <module>
    main()
  File "/tmp/ansible_ovBTK3/ansible_module_oc.py", line 435, in main
    exists = oc.exists(resource)
  File "/tmp/ansible_ovBTK3/ansible_module_oc.py", line 246, in exists
    _, code = self.connect(named_resource.url(), 'get')
  File "/tmp/ansible_ovBTK3/ansible_module_oc.py", line 191, in url
    url += self.namespace()
TypeError: cannot concatenate 'str' and 'NoneType' objects

fatal: [localhost]: FAILED! => {
    "changed": false,
    "failed": true,
    "module_stderr": "Traceback (most recent call last):\n  File \"/tmp/ansible_ovBTK3/ansible_module_oc.py\", line 470, in <module>\n    main()\n  File \"/tmp/ansible_ovBTK3/ansible_module_oc.py\", line 435, in main\n    exists = oc.exists(resource)\n  File \"/tmp/ansible_ovBTK3/ansible_module_oc.py\", line 246, in exists\n    _, code = self.connect(named_resource.url(), 'get')\n  File \"/tmp/ansible_ovBTK3/ansible_module_oc.py\", line 191, in url\n    url += self.namespace()\nTypeError: cannot concatenate 'str' and 'NoneType' objects\n",
    "module_stdout": "",
    "rc": 0
}

MSG:

MODULE FAILURE