Cherry-pick https://github.com/RedHatQE/openshift-python-wrapper/pull/504 to 4.8 - 599

[cnv-qe-bot]

[Auto generated]
Number: [#599]

[cnv-qe-bot]

Closing issue for PR: [4.8] Check existence of worker-pods member in NNCP object to avoid none-object failure.
PR was closed.