test : fix for python 2.6
test : fix for python 2.6

EmreAtes/spack,LLNL/spack,skosukhin/spack,EmreAtes/spack,tmerrick1/spack,skosukhin/spack,mfherbst/spack,lgarren/spack,mfherbst/spack,LLNL/spack,skosukhin/spack,lgarren/spack,krafczyk/spack,matthiasdiener/spack,tmerrick1/spack,EmreAtes/spack,EmreAtes/spack,LLNL/spack,krafczyk/spack,lgarren/spack,matthiasdiener/spack,iulian787/spack,TheTimmy/spack,krafczyk/spack,LLNL/spack,LLNL/spack,krafczyk/spack,skosukhin/spack,tmerrick1/spack,iulian787/spack,lgarren/spack,tmerrick1/spack,skosukhin/spack,mfherbst/spack,tmerrick1/spack,mfherbst/spack,matthiasdiener/spack,iulian787/spack,krafczyk/spack,EmreAtes/spack,iulian787/spack,TheTimmy/spack,TheTimmy/spack,iulian787/spack,mfherbst/spack,TheTimmy/spack,matthiasdiener/spack,matthiasdiener/spack,lgarren/spack,TheTimmy/spack