old_contents: from base import load_diabetes
  from base import load_digits
  from base import load_files
  from base import load_iris
  from mlcomp import load_mlcomp
  
new_contents: from .base import load_diabetes
  from .base import load_digits
  from .base import load_files
  from .base import load_iris
  from .mlcomp import load_mlcomp
  
subject: Use relative imports in datasets.