old_contents: #!/usr/bin/env python2
  from setuptools import setup
  
  
  setup(name="sagbescheid",
        author="Wieland Hoffmann",
        author_email="themineo@gmail.com",
        packages=["sagbescheid", "sagbescheid.notifiers"],
        package_dir={"sagbescheid": "sagbescheid"},
        download_url="https://github.com/mineo/sagbescheid/tarball/master",
        url="http://github.com/mineo/sagbescheid",
        license="MIT",
        classifiers=["Development Status :: 4 - Beta",
                     "License :: OSI Approved :: MIT License",
                     "Natural Language :: English",
                     "Operating System :: OS Independent",
                     "Programming Language :: Python :: 2.7"],
        description="systemd notification daemon",
        long_description=open("README.rst").read(),
        install_requires=["Twisted[tls]>=15.2.0",
                          "pyasn1",
                          "txdbus==1.1.0",
                          "automat==0.7.0",
                          "zope.interface==4.6.0",
                          "systemd-python==234",
                          "enum34==1.1.6;python_version<'3.4'"],
        setup_requires=["setuptools_scm"],
        use_scm_version={"write_to": "sagbescheid/version.py"},
        extras_require={
            'docs': ['sphinx', 'sphinxcontrib-autoprogram']
            }
        )
  
new_contents: #!/usr/bin/env python2
  from setuptools import setup
  
  
  setup(name="sagbescheid",
        author="Wieland Hoffmann",
        author_email="themineo@gmail.com",
        packages=["sagbescheid", "sagbescheid.notifiers"],
        package_dir={"sagbescheid": "sagbescheid"},
        download_url="https://github.com/mineo/sagbescheid/tarball/master",
        url="http://github.com/mineo/sagbescheid",
        license="MIT",
        classifiers=["Development Status :: 4 - Beta",
                     "License :: OSI Approved :: MIT License",
                     "Natural Language :: English",
                     "Operating System :: OS Independent",
                     "Programming Language :: Python :: 2.7"],
        description="systemd notification daemon",
        long_description=open("README.rst").read(),
        install_requires=["Twisted[tls]>=15.2.0",
                          "pyasn1",
                          "txdbus==1.1.0",
                          "automat==0.7.0",
                          "zope.interface==4.6.0",
                          "systemd-python==234",
                          "enum34==1.1.6;python_version<'3.4'",
                          "six==1.12.0"],
        setup_requires=["setuptools_scm"],
        use_scm_version={"write_to": "sagbescheid/version.py"},
        extras_require={
            'docs': ['sphinx', 'sphinxcontrib-autoprogram']
            }
        )
  
subject: Install six for Python 2 & 3 compatibility