PEP8 fixes
PEP8 fixes

pllim/astropy,astropy/astropy,stargaser/astropy,pllim/astropy,MSeifert04/astropy,pllim/astropy,saimn/astropy,astropy/astropy,larrybradley/astropy,pllim/astropy,StuartLittlefair/astropy,saimn/astropy,MSeifert04/astropy,StuartLittlefair/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,mhvk/astropy,saimn/astropy,larrybradley/astropy,saimn/astropy,mhvk/astropy,StuartLittlefair/astropy,aleksandr-bakanov/astropy,dhomeier/astropy,saimn/astropy,dhomeier/astropy,mhvk/astropy,dhomeier/astropy,astropy/astropy,stargaser/astropy,lpsinger/astropy,MSeifert04/astropy,lpsinger/astropy,mhvk/astropy,lpsinger/astropy,dhomeier/astropy,astropy/astropy,astropy/astropy,stargaser/astropy,stargaser/astropy,dhomeier/astropy,mhvk/astropy,pllim/astropy,lpsinger/astropy,lpsinger/astropy,larrybradley/astropy,MSeifert04/astropy,StuartLittlefair/astropy,larrybradley/astropy,StuartLittlefair/astropy