Slightly safer init function for iterparse.
Slightly safer init function for iterparse.

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