Fix more Python version compatibility issues.
Fix more Python version compatibility issues.

niteoweb/libcloud,cryptickp/libcloud,aleGpereira/libcloud,Scalr/libcloud,carletes/libcloud,pantheon-systems/libcloud,DimensionDataCBUSydney/libcloud,DimensionDataCBUSydney/libcloud,sergiorua/libcloud,illfelder/libcloud,mbrukman/libcloud,Verizon/libcloud,thesquelched/libcloud,atsaki/libcloud,wido/libcloud,marcinzaremba/libcloud,pquentin/libcloud,aviweit/libcloud,apache/libcloud,JamesGuthrie/libcloud,andrewsomething/libcloud,carletes/libcloud,mtekel/libcloud,kater169/libcloud,NexusIS/libcloud,carletes/libcloud,jerryblakley/libcloud,watermelo/libcloud,cloudControl/libcloud,niteoweb/libcloud,dcorbacho/libcloud,jimbobhickville/libcloud,Verizon/libcloud,kater169/libcloud,wido/libcloud,Kami/libcloud,sergiorua/libcloud,niteoweb/libcloud,mathspace/libcloud,lochiiconnectivity/libcloud,wuyuewen/libcloud,sahildua2305/libcloud,jimbobhickville/libcloud,mathspace/libcloud,mistio/libcloud,Cloud-Elasticity-Services/as-libcloud,samuelchong/libcloud,erjohnso/libcloud,wido/libcloud,illfelder/libcloud,t-tran/libcloud,erjohnso/libcloud,apache/libcloud,wrigri/libcloud,smaffulli/libcloud,aviweit/libcloud,erjohnso/libcloud,wuyuewen/libcloud,mgogoulos/libcloud,cloudControl/libcloud,sfriesel/libcloud,supertom/libcloud,dcorbacho/libcloud,sahildua2305/libcloud,mtekel/libcloud,supertom/libcloud,schaubl/libcloud,mgogoulos/libcloud,sfriesel/libcloud,aviweit/libcloud,illfelder/libcloud,aleGpereira/libcloud,atsaki/libcloud,MrBasset/libcloud,Scalr/libcloud,Cloud-Elasticity-Services/as-libcloud,marcinzaremba/libcloud,jerryblakley/libcloud,mistio/libcloud,vongazman/libcloud,DimensionDataCBUSydney/libcloud,watermelo/libcloud,thesquelched/libcloud,vongazman/libcloud,cloudControl/libcloud,lochiiconnectivity/libcloud,MrBasset/libcloud,briancurtin/libcloud,apache/libcloud,pantheon-systems/libcloud,watermelo/libcloud,StackPointCloud/libcloud,ByteInternet/libcloud,techhat/libcloud,techhat/libcloud,ZuluPro/libcloud,curoverse/libcloud,mgogoulos/libcloud,Itxaka/libcloud,Kami/libcloud,Verizon/libcloud,schaubl/libcloud,pquentin/libcloud,sergiorua/libcloud,vongazman/libcloud,wrigri/libcloud,ZuluPro/libcloud,supertom/libcloud,iPlantCollaborativeOpenSource/libcloud,mathspace/libcloud,Cloud-Elasticity-Services/as-libcloud,StackPointCloud/libcloud,StackPointCloud/libcloud,NexusIS/libcloud,aleGpereira/libcloud,iPlantCollaborativeOpenSource/libcloud,ByteInternet/libcloud,smaffulli/libcloud,mbrukman/libcloud,jerryblakley/libcloud,andrewsomething/libcloud,kater169/libcloud,cryptickp/libcloud,SecurityCompass/libcloud,briancurtin/libcloud,SecurityCompass/libcloud,andrewsomething/libcloud,techhat/libcloud,lochiiconnectivity/libcloud,t-tran/libcloud,MrBasset/libcloud,mistio/libcloud,wuyuewen/libcloud,cryptickp/libcloud,jimbobhickville/libcloud,Scalr/libcloud,briancurtin/libcloud,NexusIS/libcloud,thesquelched/libcloud,wrigri/libcloud,Kami/libcloud,samuelchong/libcloud,pquentin/libcloud,smaffulli/libcloud,JamesGuthrie/libcloud,ZuluPro/libcloud,iPlantCollaborativeOpenSource/libcloud,sfriesel/libcloud,samuelchong/libcloud,SecurityCompass/libcloud,curoverse/libcloud,ByteInternet/libcloud,mtekel/libcloud,JamesGuthrie/libcloud,sahildua2305/libcloud,marcinzaremba/libcloud,mbrukman/libcloud,dcorbacho/libcloud,Itxaka/libcloud,atsaki/libcloud,pantheon-systems/libcloud,Itxaka/libcloud,schaubl/libcloud,t-tran/libcloud,curoverse/libcloud