new_contents: """ Path utilities for benchbuild. """
  import os
  
  def list_to_path(pathlist):
      """Convert a list of path elements to a path string."""
      return os.path.pathsep.join(pathlist)
  
  def path_to_list(pathstr):
      """Conver a path string to a list of path elements."""
      return [elem for elem in pathstr.split(os.path.pathsep) if elem]
  
subject: add path utilities