old_contents: from setuptools import find_packages
  from setuptools import setup
  
  setup(
      name='dumbconf',
      description='A dumb configuration language.',
      url='https://github.com/asottile/dumbconf',
      version='0.0.0',
      author='Anthony Sottile',
      author_email='asottile@umich.edu',
      classifiers=[
          'License :: OSI Approved :: MIT License',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: Implementation :: CPython',
          'Programming Language :: Python :: Implementation :: PyPy',
      ],
      packages=find_packages(exclude=('tests*', 'testing*')),
  )
  
new_contents: from setuptools import setup
  setup()
  
subject: Migrate setup.py to setup.cfg declarative metadata