code: def write_tree_file(tree, hostname, buf):
      ''' write something into treedir/hostname '''
  
      # TODO: might be nice to append playbook runs per host in a similar way
      # in which case, we'd want append mode.
      path = os.path.join(tree, hostname)
      fd = open(path, "w+")
      fd.write(buf)
      fd.close(f write_tree_file(tree, hostname, buf):
      ''' write something into treedir/hostname '''
  
      # TODO: might be nice to append playbook runs per host in a similar way
      # in which case, we'd want append mode.
      path = os.path.join(tree, hostname)
      fd = open(path, "w+")
      fd.write(buf)
      fd.close()
docs: write something into treedir/hostname