old_contents: #
  # models - Statistical Models
  #
  
  from info import __doc__
  
  import model
  import formula
  import regression
  import robust
  import family
  from glm import model as glm
  from rlm import model as rlm
  
  from numpy.testing import NumpyTest
  test = NumpyTest().test
  
new_contents: #
  # models - Statistical Models
  #
  
  from scipy.sandbox.models.info import __doc__
  
  import scipy.sandbox.models.model
  import scipy.sandbox.models.formula
  import scipy.sandbox.models.regression
  import scipy.sandbox.models.robust
  import scipy.sandbox.models.family
  from scipy.sandbox.models.glm import model as glm
  from scipy.sandbox.models.rlm import model as rlm
  
  __all__ = filter(lambda s:not s.startswith('_'),dir())
  
  from numpy.testing import NumpyTest
  test = NumpyTest().test
  
subject: use absolute imports and define __all__