ENH: Make CreateNewExample compatible with Python 3.
ENH: Make CreateNewExample compatible with Python 3.

Change-Id: I845f317711d579e3633bbe6171c21ed2b2a33eb5

InsightSoftwareConsortium/ITKExamples,InsightSoftwareConsortium/ITKExamples,InsightSoftwareConsortium/ITKExamples,InsightSoftwareConsortium/ITKExamples,InsightSoftwareConsortium/ITKExamples