Fix python image name/tag for helloworld.
Fix python image name/tag for helloworld.

kensipe/universe,dbtucker/universe,ksivask/universe,madanadit/universe,mesosphere/universe,titosand/universe,Capgemini/universe,mesosphere/universe,ravbaba/universe,yuchaoran2011/universe,kensipe/universe,dmitrypekar/universe,BuoyantIO/universe,m4ce/universe,dbtucker/universe,ravbaba/universe,ksivask/universe,aloismayr/universe,healthagentech/universe,kensipe/multiverse,drewkerrigan/universe,jfindley/multiverse,triforkse/universe,madanadit/universe,AppliedIS/universe,NimaVaziri/universe,titosand/universe,DataDog/universe,yuchaoran2011/universe,errordeveloper/universe,concord/universe,mesosphere/universe-1.7,sttts/universe,kensipe/universe,include/universe,mesosphere/multiverse,BuoyantIO/universe,enxebre/universe,dhilipkumars/universe,data-fellas/multiverse,m4ce/universe,mesosphere/universe-1.7,kensipe/multiverse,BuoyantIO/universe,errordeveloper/universe,dhilipkumars/universe,mwl/universe,elodina/universe,AppliedIS/universe,dbtucker/universe,niteshch207/universe,madanadit/universe,niteshch207/universe,mesosphere/multiverse,crate/universe,jfindley/multiverse,aloismayr/universe,niteshch207/universe,dhilipkumars/universe,data-fellas/multiverse,nalingarg2/universe,aloismayr/universe,ContainerSolutions/universe,ContainerSolutions/universe,Flogistix/universe,crate/universe,NimaVaziri/universe,enxebre/universe,DataDog/universe,neunhoef/universe,Lnmix/multiverse,AppliedIS/universe,Flogistix/universe,concord/universe,healthagentech/universe,mesosphere/multiverse,errordeveloper/universe,Capgemini/multiverse,socialvibe/universe,neunhoef/universe,ksivask/universe,NimaVaziri/universe,yuchaoran2011/universe,elodina/universe,nalingarg2/universe,mwl/universe,triforkse/universe,Lnmix/multiverse,socialvibe/universe,dmitrypekar/universe,sttts/universe,Capgemini/universe,Capgemini/multiverse,include/universe,drewkerrigan/universe,titosand/universe