major bugfix: python3 really can't handle a damned thing about changing local variables
major bugfix: python3 really can't handle a damned thing about changing
local variables

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