Moved six import to the top as suggested by @mdboom
Moved six import to the top as suggested by @mdboom

bsipocz/astropy,MSeifert04/astropy,AustereCuriosity/astropy,DougBurke/astropy,MSeifert04/astropy,joergdietrich/astropy,bsipocz/astropy,saimn/astropy,funbaker/astropy,larrybradley/astropy,mhvk/astropy,tbabej/astropy,larrybradley/astropy,joergdietrich/astropy,astropy/astropy,pllim/astropy,funbaker/astropy,funbaker/astropy,MSeifert04/astropy,pllim/astropy,DougBurke/astropy,saimn/astropy,StuartLittlefair/astropy,astropy/astropy,kelle/astropy,larrybradley/astropy,StuartLittlefair/astropy,AustereCuriosity/astropy,saimn/astropy,larrybradley/astropy,stargaser/astropy,pllim/astropy,kelle/astropy,tbabej/astropy,dhomeier/astropy,astropy/astropy,saimn/astropy,AustereCuriosity/astropy,aleksandr-bakanov/astropy,lpsinger/astropy,lpsinger/astropy,DougBurke/astropy,tbabej/astropy,bsipocz/astropy,dhomeier/astropy,kelle/astropy,lpsinger/astropy,pllim/astropy,mhvk/astropy,saimn/astropy,joergdietrich/astropy,StuartLittlefair/astropy,MSeifert04/astropy,AustereCuriosity/astropy,dhomeier/astropy,kelle/astropy,dhomeier/astropy,astropy/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,tbabej/astropy,joergdietrich/astropy,StuartLittlefair/astropy,larrybradley/astropy,lpsinger/astropy,dhomeier/astropy,StuartLittlefair/astropy,pllim/astropy,DougBurke/astropy,tbabej/astropy,stargaser/astropy,lpsinger/astropy,AustereCuriosity/astropy,joergdietrich/astropy,aleksandr-bakanov/astropy,bsipocz/astropy,funbaker/astropy,mhvk/astropy,stargaser/astropy,stargaser/astropy,astropy/astropy,kelle/astropy,mhvk/astropy,mhvk/astropy