[root@delete-test ansible]# ansible-playbook -i inventory/hosts playbooks/ovf_deploy.yml -vvv
ansible-playbook 2.4.1.0
  config file = /root/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible-playbook
  python version = 2.7.5 (default, Nov  6 2016, 00:28:07) [GCC 4.8.5 20150623 (Red Hat 4.8.5-11)]
Using /root/ansible/ansible.cfg as config file
Parsed /root/ansible/inventory/hosts inventory source with ini plugin
Read vars_file '../vars/ovf_deploy.yml'
Read vars_file '../vars/ovf_deploy.yml'

PLAYBOOK: ovf_deploy.yml ********************************************************************************************************************************************
1 plays in playbooks/ovf_deploy.yml
Read vars_file '../vars/ovf_deploy.yml'
Read vars_file '../vars/ovf_deploy.yml'

PLAY [Install VCSA on the given ESXi host] **************************************************************************************************************************
META: ran handlers
Read vars_file '../vars/ovf_deploy.yml'
Read vars_file '../vars/ovf_deploy.yml'

TASK [../roles/ovf_deploy : Deploying OVF template into vCenter] ****************************************************************************************************
task path: /root/ansible/roles/ovf_deploy/tasks/main.yml:2
Using module file /root/ansible/roles/ovf_deploy/library/vmware_deploy_ovf.py
<localhost> ESTABLISH LOCAL CONNECTION FOR USER: root
<localhost> EXEC /bin/sh -c 'echo ~ && sleep 0'
<localhost> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp/ansible-tmp-1515547920.56-111775632531337 `" && echo ansible-tmp-1515547920.56-111775632531337="` echo /root/.ansible/tmp/ansible-tmp-1515547920.56-111775632531337 `" ) && sleep 0'
<localhost> PUT /tmp/tmpHSZZCD TO /root/.ansible/tmp/ansible-tmp-1515547920.56-111775632531337/vmware_deploy_ovf.py
<localhost> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1515547920.56-111775632531337/ /root/.ansible/tmp/ansible-tmp-1515547920.56-111775632531337/vmware_deploy_ovf.py && sleep 0'
<localhost> EXEC /bin/sh -c '/usr/bin/python /root/.ansible/tmp/ansible-tmp-1515547920.56-111775632531337/vmware_deploy_ovf.py; rm -rf "/root/.ansible/tmp/ansible-tmp-1515547920.56-111775632531337/" > /dev/null 2>&1 && sleep 0'
The full traceback is:
Traceback (most recent call last):
  File "/tmp/ansible_3KIqc0/ansible_module_vmware_deploy_ovf.py", line 579, in <module>
    main()
  File "/tmp/ansible_3KIqc0/ansible_module_vmware_deploy_ovf.py", line 536, in main
    deploy_ovf.upload()
  File "/tmp/ansible_3KIqc0/ansible_module_vmware_deploy_ovf.py", line 412, in upload
    uploader.start()
  File "/usr/lib64/python2.7/threading.py", line 740, in start
    raise RuntimeError("threads can only be started once")
RuntimeError: threads can only be started once

fatal: [10.7.240.133 -> localhost]: FAILED! => {
    "changed": false,
    "failed": true,
    "module_stderr": "Traceback (most recent call last):\n  File \"/tmp/ansible_3KIqc0/ansible_module_vmware_deploy_ovf.py\", line 579, in <module>\n    main()\n  File \"/tmp/ansible_3KIqc0/ansible_module_vmware_deploy_ovf.py\", line 536, in main\n    deploy_ovf.upload()\n  File \"/tmp/ansible_3KIqc0/ansible_module_vmware_deploy_ovf.py\", line 412, in upload\n    uploader.start()\n  File \"/usr/lib64/python2.7/threading.py\", line 740, in start\n    raise RuntimeError(\"threads can only be started once\")\nRuntimeError: threads can only be started once\n",
    "module_stdout": "",
    "msg": "MODULE FAILURE",
    "rc": 0
}
        to retry, use: --limit @/root/ansible/playbooks/ovf_deploy.retry

PLAY RECAP **********************************************************************************************************************************************************
10.7.240.133               : ok=0    changed=0    unreachable=0    failed=1