old_contents: from distutils.core import setup
  setup(name='add-dist-packages',
        version='0.1',
        scripts=['add_dist_package'],
        )
  
new_contents: from distutils.core import setup
  setup(name='add-dist-packages',
        version='0.1',
        scripts=['add-dist-package'],
        )
  
subject: Update setup to new script.