solves a circular import problem
solves a circular import problem

sdss/marvin,bretthandrews/marvin,sdss/marvin,bretthandrews/marvin,bretthandrews/marvin,sdss/marvin,albireox/marvin,sdss/marvin,bretthandrews/marvin,albireox/marvin,albireox/marvin,albireox/marvin