old_contents: from hog import hog
  from greycomatrix import greycomatrix, greycoprops
  from peak import peak_local_max
  from harris import harris
  
new_contents: from hog import hog
  from greycomatrix import greycomatrix, greycoprops
  from peak import peak_local_max
  from .harris import harris
  
subject: Fix import of harris.