old_contents: import os
  import sys
  from setuptools import find_packages, setup
  from pucas import __version__
  
  with open(os.path.join(os.path.dirname(__file__), 'README.rst')) as readme:
      README = readme.read()
  
  # allow setup.py to be run from any path
  os.chdir(os.path.normpath(os.path.join(os.path.abspath(__file__), os.pardir)))
  
  REQUIREMENTS = ['django>=1.8', 'django-cas-ng>=3.6', 'ldap3']
  TEST_REQUIREMENTS = ['pytest', 'pytest-django', 'pytest-cov']
  if sys.version_info < (3, 0):
      TEST_REQUIREMENTS.append('mock')
  
  
  setup(
      name='pucas',
      version=__version__,
      packages=find_packages(),
      include_package_data=True,
      license='Apache License, Version 2.0',
      description='Django app to login with CAS and populate user accounts with LDAP.',
      long_description=README,
      url='https://github.com/Princeton-CDH/django-pucas',
      install_requires=REQUIREMENTS,
      setup_requires=['pytest-runner'],
      tests_require=TEST_REQUIREMENTS,
      extras_require={
          'test': TEST_REQUIREMENTS,
      },
      author='CDH @ Princeton',
      author_email='digitalhumanities@princeton.edu',
      classifiers=[
          'Environment :: Web Environment',
          'Framework :: Django',
          'Framework :: Django :: 1.8',
          'Framework :: Django :: 1.9',
          'Framework :: Django :: 1.10',
          'Framework :: Django :: 1.11',
          'Framework :: Django :: 2.0',
          'Framework :: Django :: 2.1',
          'Framework :: Django :: 2.2',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: Apache Software License',
          'Operating System :: OS Independent',
          'Programming Language :: Python',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: 3.7',
          'Topic :: Internet :: WWW/HTTP',
          'Topic :: System :: Systems Administration :: Authentication/Directory',
          'Topic :: System :: Systems Administration :: Authentication/Directory :: LDAP',
      ],
  )
  
new_contents: import os
  import sys
  from setuptools import find_packages, setup
  from pucas import __version__
  
  with open(os.path.join(os.path.dirname(__file__), 'README.rst')) as readme:
      README = readme.read()
  
  # allow setup.py to be run from any path
  os.chdir(os.path.normpath(os.path.join(os.path.abspath(__file__), os.pardir)))
  
  REQUIREMENTS = ['django>=1.8', 'django-cas-ng>=3.6', 'ldap3']
  TEST_REQUIREMENTS = ['pytest', 'pytest-django', 'pytest-cov']
  if sys.version_info < (3, 0):
      TEST_REQUIREMENTS.append('mock')
  
  
  setup(
      name='pucas',
      version=__version__,
      packages=find_packages(),
      include_package_data=True,
      license='Apache License, Version 2.0',
      description='Django app to login with CAS and populate user accounts with LDAP.',
      long_description=README,
      url='https://github.com/Princeton-CDH/django-pucas',
      install_requires=REQUIREMENTS,
      setup_requires=['pytest-runner'],
      tests_require=TEST_REQUIREMENTS,
      extras_require={
          'test': TEST_REQUIREMENTS,
      },
      author='CDH @ Princeton',
      author_email='digitalhumanities@princeton.edu',
      classifiers=[
          'Environment :: Web Environment',
          'Framework :: Django',
          'Framework :: Django :: 1.8',
          'Framework :: Django :: 1.9',
          'Framework :: Django :: 1.10',
          'Framework :: Django :: 1.11',
          'Framework :: Django :: 2.0',
          'Framework :: Django :: 2.1',
          'Framework :: Django :: 2.2',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: Apache Software License',
          'Operating System :: OS Independent',
          'Programming Language :: Python',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: 3.7',
          'Programming Language :: Python :: 3 :: Only',
          'Topic :: Internet :: WWW/HTTP',
          'Topic :: System :: Systems Administration :: Authentication/Directory',
          'Topic :: System :: Systems Administration :: Authentication/Directory :: LDAP',
      ],
  )
  
subject: Add python 3 only classification