old_contents: from __future__ import (absolute_import, division, with_statement)
  
  from dpc.rbtree import RedBlackTree
  
  # Local variables:
  # mode: Python
  # tab-width: 8
  # indent-tabs-mode: nil
  # End:
  # vi: set expandtab tabstop=8
  
new_contents: from __future__ import (absolute_import, division, with_statement)
  
  from algae.rbtree import RedBlackTree
  
  # Local variables:
  # mode: Python
  # tab-width: 8
  # indent-tabs-mode: nil
  # End:
  # vi: set expandtab tabstop=8
  
subject: Fix module typo.