one more small import error message removal
one more small import error message removal

low-sky/pyspeckit,keflavich/pyspeckit,vlas-sokolov/pyspeckit,allisony/pyspeckit,e-koch/pyspeckit,keflavich/pyspeckit-obsolete,dinossimpson/pyspeckit,low-sky/pyspeckit,vlas-sokolov/pyspeckit,e-koch/pyspeckit,pyspeckit/pyspeckit,mikelum/pyspeckit,dinossimpson/pyspeckit,keflavich/pyspeckit,bsipocz/pyspeckit,pyspeckit/pyspeckit,jpinedaf/pyspeckit,allisony/pyspeckit,jpinedaf/pyspeckit,mikelum/pyspeckit,bsipocz/pyspeckit