old_contents: """Setup file for rest_framework_sav."""
  import os
  import sys
  
  from setuptools import setup, find_packages
  
  import rest_framework_expiring_authtoken
  
  
  version = rest_framework_expiring_authtoken.__version__
  
  if sys.argv[-1] == 'publish':
      if os.system("pip freeze | grep wheel"):
          print("wheel not installed.\nUse `pip install wheel`.\nExiting.")
          sys.exit()
      if os.system("pip freeze | grep twine"):
          print("twine not installed.\nUse `pip install twine`.\nExiting.")
          sys.exit()
      os.system("python setup.py sdist bdist_wheel")
      os.system("twine upload dist/*")
      print("You probably want to also tag the version now:")
      print("  git tag -a %s -m 'version %s'" % (version, version))
      print("  git push --tags")
      sys.exit()
  
  setup(
      name='djangorestframework-expiring-authtoken',
      version=version,
      description='Expiring Authentication Tokens for Django REST Framework',
      url=(
          'https://github.com/JamesRitchie/django-rest-framework-expiring-tokens'
      ),
      author='James Ritchie',
      author_email='james.a.ritchie@gmail.com',
      license='BSD',
      packages=find_packages(exclude=['tests*']),
      install_requires=[
          'djangorestframework>=3.2.3,<=3.4.6'
      ],
      test_suite='runtests.run',
      tests_require=[
          'Django>=1.8.14,<=1.10.1'
      ],
      zip_safe=False,
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Environment :: Web Environment',
          'Framework :: Django',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: BSD License',
          'Operating System :: OS Independent',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.6',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.2',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Topic :: Internet :: WWW/HTTP',
      ]
  )
  
new_contents: """Setup file for rest_framework_sav."""
  import os
  import sys
  
  from setuptools import setup, find_packages
  
  import rest_framework_expiring_authtoken
  
  
  version = rest_framework_expiring_authtoken.__version__
  
  if sys.argv[-1] == 'publish':
      if os.system("pip list | grep wheel"):
          print("wheel not installed.\nUse `pip install wheel`.\nExiting.")
          sys.exit()
      if os.system("pip freeze | grep twine"):
          print("twine not installed.\nUse `pip install twine`.\nExiting.")
          sys.exit()
      os.system("python setup.py sdist bdist_wheel")
      os.system("twine upload dist/*")
      print("You probably want to also tag the version now:")
      print("  git tag -a %s -m 'version %s'" % (version, version))
      print("  git push --tags")
      sys.exit()
  
  setup(
      name='djangorestframework-expiring-authtoken',
      version=version,
      description='Expiring Authentication Tokens for Django REST Framework',
      url=(
          'https://github.com/JamesRitchie/django-rest-framework-expiring-tokens'
      ),
      author='James Ritchie',
      author_email='james.a.ritchie@gmail.com',
      license='BSD',
      packages=find_packages(exclude=['tests*']),
      install_requires=[
          'djangorestframework>=3.2.3,<=3.4.6'
      ],
      test_suite='runtests.run',
      tests_require=[
          'Django>=1.8.14,<=1.10.1'
      ],
      zip_safe=False,
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Environment :: Web Environment',
          'Framework :: Django',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: BSD License',
          'Operating System :: OS Independent',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.6',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.2',
          'Programming Language :: Python :: 3.3',
          'Programming Language :: Python :: 3.4',
          'Topic :: Internet :: WWW/HTTP',
      ]
  )
  
subject: Use pip list instead of freeze.