If an IOError or ValueError occur when trying to check if the 'header' variable is a valid pathname then go ahead and assume it is not a pathname
If an IOError or ValueError occur when trying to check if the 'header' variable is a valid pathname then go ahead and assume it is not a pathname

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