new_contents: # -*- coding: utf-8 -*-
  # Copyright 2013-2014 Victor Amin, http://vamin.net/
  
  """MESS.DB transform module
  
  This module contains the transform tool class and load function.
  """
  
  from __future__ import print_function
  from __future__ import unicode_literals
  
  import argparse
  
  from mess._tool import AbstractTool
  
  
  class Transform(AbstractTool):
      """Use reaction SMARTS to transform molecules."""
      
      def __init__(self):
          """Set description of tool."""
          self.description = 'Transform molecules by reaction SMARTS'
          self.epilog = ''
      
      def subparse(self, subparser):
          """Set tool-specific argparse arguments."""
          pass
      
      def execute(self, args):
          """Transform stuff."""
          sys.exit('not yet implemented')
  
  
  def load():
      """Load Transform()."""
      return Transform()
  
subject: transform tool placeholder