old_contents: from setuptools import find_packages, setup
  
  from django_mailbox import __version__ as version_string
  
  tests_require = [
      'django',
      'mock',
      'unittest2',
  ]
  
  gmail_oauth2_require = [
      'python-social-auth',
  ]
  
  setup(
      name='django-mailbox',
      version=version_string,
      url='http://github.com/coddingtonbear/django-mailbox/',
      description=(
          'Import mail from POP3, IMAP, local mailboxes or directly from '
          'Postfix or Exim4 into your Django application automatically.'
      ),
      license='MIT',
      author='Adam Coddington',
      author_email='me@adamcoddington.net',
      extras_require={
          'gmail-oauth2': gmail_oauth2_require
      },
      classifiers=[
          'Framework :: Django',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: MIT License',
          'Operating System :: OS Independent',
          'Programming Language :: Python',
          'Programming Language :: Python :: 2.6',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Topic :: Communications :: Email',
          'Topic :: Communications :: Email :: Post-Office',
          'Topic :: Communications :: Email :: Post-Office :: IMAP',
          'Topic :: Communications :: Email :: Post-Office :: POP3',
          'Topic :: Communications :: Email :: Email Clients (MUA)',
      ],
      packages=find_packages(),
      include_package_data = True,
      install_requires=[
          'six>=1.6.1'
      ]
  )
  
new_contents: from setuptools import find_packages, setup
  
  from django_mailbox import __version__ as version_string
  
  tests_require = [
      'django',
      'mock',
      'unittest2',
  ]
  
  gmail_oauth2_require = [
      'python-social-auth',
  ]
  
  setup(
      name='django-mailbox',
      version=version_string,
      url='http://github.com/coddingtonbear/django-mailbox/',
      description=(
          'Import mail from POP3, IMAP, local mailboxes or directly from '
          'Postfix or Exim4 into your Django application automatically.'
      ),
      license='MIT',
      author='Adam Coddington',
      author_email='me@adamcoddington.net',
      extras_require={
          'gmail-oauth2': gmail_oauth2_require
      },
      classifiers=[
          'Framework :: Django',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: MIT License',
          'Operating System :: OS Independent',
          'Framework :: Django',
          'Framework :: Django :: 1.4',
          'Framework :: Django :: 1.5',
          'Framework :: Django :: 1.6',
          'Framework :: Django :: 1.7',
          'Framework :: Django :: 1.8',
          'Framework :: Django :: 1.9',
          'Framework :: Django :: 1.10',
          'Programming Language :: Python',
          'Programming Language :: Python :: 2.6',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Topic :: Communications :: Email',
          'Topic :: Communications :: Email :: Post-Office',
          'Topic :: Communications :: Email :: Post-Office :: IMAP',
          'Topic :: Communications :: Email :: Post-Office :: POP3',
          'Topic :: Communications :: Email :: Email Clients (MUA)',
      ],
      packages=find_packages(),
      include_package_data = True,
      install_requires=[
          'six>=1.6.1'
      ]
  )
  
subject: Add missing classifiers in setup.py