fix try except _as_ for 2.5
fix try except _as_ for 2.5

carolFrohlich/nipype,sgiavasis/nipype,mick-d/nipype,dmordom/nipype,JohnGriffiths/nipype,wanderine/nipype,glatard/nipype,arokem/nipype,iglpdc/nipype,glatard/nipype,arokem/nipype,carolFrohlich/nipype,JohnGriffiths/nipype,dmordom/nipype,rameshvs/nipype,blakedewey/nipype,FredLoney/nipype,carolFrohlich/nipype,carolFrohlich/nipype,mick-d/nipype_source,arokem/nipype,glatard/nipype,wanderine/nipype,blakedewey/nipype,gerddie/nipype,pearsonlab/nipype,pearsonlab/nipype,FCP-INDI/nipype,FredLoney/nipype,sgiavasis/nipype,blakedewey/nipype,fprados/nipype,Leoniela/nipype,FCP-INDI/nipype,wanderine/nipype,Leoniela/nipype,rameshvs/nipype,dgellis90/nipype,blakedewey/nipype,gerddie/nipype,iglpdc/nipype,wanderine/nipype,Leoniela/nipype,christianbrodbeck/nipype,carlohamalainen/nipype,grlee77/nipype,fprados/nipype,pearsonlab/nipype,mick-d/nipype_source,dgellis90/nipype,rameshvs/nipype,mick-d/nipype_source,fprados/nipype,glatard/nipype,dmordom/nipype,FCP-INDI/nipype,pearsonlab/nipype,dgellis90/nipype,sgiavasis/nipype,sgiavasis/nipype,grlee77/nipype,FredLoney/nipype,rameshvs/nipype,dgellis90/nipype,christianbrodbeck/nipype,iglpdc/nipype,iglpdc/nipype,arokem/nipype,gerddie/nipype,mick-d/nipype,mick-d/nipype,JohnGriffiths/nipype,grlee77/nipype,gerddie/nipype,carlohamalainen/nipype,mick-d/nipype,carlohamalainen/nipype,grlee77/nipype,JohnGriffiths/nipype,FCP-INDI/nipype