old_contents: 
  __revision__ = '$Id: setup.py,v 1.2 2003/03/26 17:34:48 akuchling Exp $'
  
  from distutils import core 
  
  kw = {
      'name' : 'jwzthreading',
      'version' : '0.91',
      'description' : 'Algorithm for threading mail messages.',
      'long_description' : '''Contains an implementation of an algorithm for threading mail
  messages, as described at http://www.jwz.org/doc/threading.html.''',
      'author' : "A.M. Kuchling",
      'author_email' : "amk@amk.ca",
      'url' : "http://www.amk.ca/python/code/jwzthreading.html",
      'py_modules' : ['jwzthreading'],
      }
  
  # If we're running Python 2.3, add extra information
  if hasattr(core, 'setup_keywords'):
      if 'classifiers' in core.setup_keywords:
          kw['classifiers'] = [
              'Development Status :: 3 - Alpha',
              'Intended Audience :: Developers',
  	    'License :: OSI Approved :: BSD License',
              'Topic :: Software Development :: Libraries',
  	    'Topic :: Communications :: Email',
              ]
      if 'download_url' in core.setup_keywords:
          kw['download_url'] = ('http://www.amk.ca/files/python/%s-%s.tar.gz' %
                                (kw['name'], kw['version']))
          
  core.setup(**kw)
  
  
  
new_contents: 
  from distutils import core 
  
  kw = {
      'name' : 'jwzthreading',
      'version' : '0.91',
      'description' : 'Algorithm for threading mail messages.',
      'long_description' : '''Contains an implementation of an algorithm for threading mail
  messages, as described at http://www.jwz.org/doc/threading.html.''',
      'author' : "A.M. Kuchling",
      'author_email' : "amk@amk.ca",
      'url' : "http://www.amk.ca/python/code/jwzthreading.html",
      'py_modules' : ['jwzthreading'],
      'classifiers' : [
              'Development Status :: 3 - Alpha',
              'Intended Audience :: Developers',
  	    'License :: OSI Approved :: BSD License',
              'Topic :: Software Development :: Libraries',
  	    'Topic :: Communications :: Email',
              ]
  }
          
  core.setup(**kw)
  
  
  
subject: Remove 2.3 compatibility from setup.py