changed basestring for str in isinstance for Python2-3 compatibility
changed basestring for str in isinstance for Python2-3 compatibility
albireox/marvin,sdss/marvin,bretthandrews/marvin,albireox/marvin,albireox/marvin,bretthandrews/marvin,albireox/marvin,bretthandrews/marvin,bretthandrews/marvin,sdss/marvin,sdss/marvin,sdss/marvin