old_contents: #!/usr/bin/env python
  # Copyright (c) 2016-present, Gregory Szorc
  # All rights reserved.
  #
  # This software may be modified and distributed under the terms
  # of the BSD license. See the LICENSE file for details.
  
  import sys
  from setuptools import setup
  
  try:
      import cffi
  except ImportError:
      cffi = None
  
  import setup_zstd
  
  SUPPORT_LEGACY = False
  
  if "--legacy" in sys.argv:
      SUPPORT_LEGACY = True
      sys.argv.remove("--legacy")
  
  # Code for obtaining the Extension instance is in its own module to
  # facilitate reuse in other projects.
  extensions = [setup_zstd.get_c_extension(SUPPORT_LEGACY, 'zstd')]
  
  install_requires = []
  
  if cffi:
      import make_cffi
      extensions.append(make_cffi.ffi.distutils_extension())
  
      # Need change in 1.8 for ffi.from_buffer() behavior.
      install_requires.append('cffi>=1.8')
  
  version = None
  
  with open('c-ext/python-zstandard.h', 'r') as fh:
      for line in fh:
          if not line.startswith('#define PYTHON_ZSTANDARD_VERSION'):
              continue
  
          version = line.split()[2][1:-1]
          break
  
  if not version:
      raise Exception('could not resolve package version; '
                      'this should never happen')
  
  setup(
      name='zstandard',
      version=version,
      description='Zstandard bindings for Python',
      long_description=open('README.rst', 'r').read(),
      url='https://github.com/indygreg/python-zstandard',
      author='Gregory Szorc',
      author_email='gregory.szorc@gmail.com',
      license='BSD',
      classifiers=[
          'Development Status :: 4 - Beta',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: BSD License',
          'Programming Language :: C',
          'Programming Language :: Python :: 2.6',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
      ],
      keywords='zstandard zstd compression',
      packages=['zstandard'],
      ext_modules=extensions,
      test_suite='tests',
      install_requires=install_requires,
  )
  
new_contents: #!/usr/bin/env python
  # Copyright (c) 2016-present, Gregory Szorc
  # All rights reserved.
  #
  # This software may be modified and distributed under the terms
  # of the BSD license. See the LICENSE file for details.
  
  import sys
  from setuptools import setup
  
  try:
      import cffi
  except ImportError:
      cffi = None
  
  import setup_zstd
  
  SUPPORT_LEGACY = False
  
  if '--legacy' in sys.argv:
      SUPPORT_LEGACY = True
      sys.argv.remove('--legacy')
  
  # Code for obtaining the Extension instance is in its own module to
  # facilitate reuse in other projects.
  extensions = [
      setup_zstd.get_c_extension(name='zstd',
                                 support_legacy=SUPPORT_LEGACY),
  ]
  
  install_requires = []
  
  if cffi:
      import make_cffi
      extensions.append(make_cffi.ffi.distutils_extension())
  
      # Need change in 1.8 for ffi.from_buffer() behavior.
      install_requires.append('cffi>=1.8')
  
  version = None
  
  with open('c-ext/python-zstandard.h', 'r') as fh:
      for line in fh:
          if not line.startswith('#define PYTHON_ZSTANDARD_VERSION'):
              continue
  
          version = line.split()[2][1:-1]
          break
  
  if not version:
      raise Exception('could not resolve package version; '
                      'this should never happen')
  
  setup(
      name='zstandard',
      version=version,
      description='Zstandard bindings for Python',
      long_description=open('README.rst', 'r').read(),
      url='https://github.com/indygreg/python-zstandard',
      author='Gregory Szorc',
      author_email='gregory.szorc@gmail.com',
      license='BSD',
      classifiers=[
          'Development Status :: 4 - Beta',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: BSD License',
          'Programming Language :: C',
          'Programming Language :: Python :: 2.6',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
      ],
      keywords='zstandard zstd compression',
      packages=['zstandard'],
      ext_modules=extensions,
      test_suite='tests',
      install_requires=install_requires,
  )
  
subject: reformat and use keyword arguments