old_contents: from distutils.core import setup, Extension
  setup(name="java_random", version="1.0.1",
        description="Provides a fast implementation of the Java random number generator",
        author="Matthew Bradbury",
        license="MIT",
        url="https://github.com/MBradbury/python_java_random",
        ext_modules=[Extension("java_random", ["src/java_random_module.c", "src/java_random.c"])],
        classifiers=["Programming Language :: Python :: 2",
                     "Programming Language :: Python :: 3"]
  )
  
new_contents: from distutils.core import setup, Extension
  setup(name="java_random", version="1.0.1",
        description="Provides a fast implementation of the Java random number generator",
        author="Matthew Bradbury",
        license="MIT",
        url="https://github.com/MBradbury/python_java_random",
        ext_modules=[Extension("java_random", ["src/java_random_module.c", "src/java_random.c"])],
        classifiers=["Programming Language :: Python :: 2",
                     "Programming Language :: Python :: 3",
                     "Programming Language :: Python :: Implementation :: CPython"]
  )
  
subject: Mark as for CPython only