Class reader python 3 compatibility
Class reader python 3 compatibility

pyspeckit/pyspeckit,keflavich/pyspeckit,keflavich/pyspeckit,allisony/pyspeckit,pyspeckit/pyspeckit,e-koch/pyspeckit,vlas-sokolov/pyspeckit,jpinedaf/pyspeckit,allisony/pyspeckit,jpinedaf/pyspeckit,e-koch/pyspeckit,low-sky/pyspeckit,low-sky/pyspeckit,vlas-sokolov/pyspeckit