old_contents: from distutils.core import Extension, setup
  
  from Cython.Build import cythonize
  
  try:
      from Cython.Distutils import build_ext
  except ImportError:
      use_cython = False
  else:
      use_cython = True
  
  
  if use_cython:
      extensions = [
          Extension('mathix.vector', ['mathix/vector.pyx']),
      ]
  
      cmdclass = {
          'build_ext': build_ext
      }
  else:
      extensions = [
          Extension('mathix.vector', ['mathix/vector.c']),
      ]
  
      cmdclass = {}
  
  
  setup(
      name='mathix',
  
      author='Peith Vergil',
  
      version='0.1',
  
      cmdclass=cmdclass,
  
      packages=[
          'mathix',
      ],
  
      keywords='useless simple math library',
  
      description='A useless simple math library.',
  
      classifiers=[
          'Development Status :: 4 - Beta',
          'Intended Audience :: Developers',
          'Programming Language :: Cython',
          'Programming Language :: Python',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
      ],
  
      ext_modules=cythonize(extensions)
  )
  
new_contents: from distutils.core import Extension, setup
  
  try:
      from Cython.Distutils import build_ext
  except ImportError:
      use_cython = False
  else:
      use_cython = True
  
  
  if use_cython:
      extensions = [
          Extension('mathix.vector', ['mathix/vector.pyx']),
      ]
  
      cmdclass = {
          'build_ext': build_ext
      }
  else:
      extensions = [
          Extension('mathix.vector', ['mathix/vector.c']),
      ]
  
      cmdclass = {}
  
  
  setup(
      name='mathix',
  
      author='Peith Vergil',
  
      version='0.1',
  
      cmdclass=cmdclass,
  
      packages=[
          'mathix',
      ],
  
      keywords='useless simple math library',
  
      description='A useless simple math library.',
  
      classifiers=[
          'Development Status :: 4 - Beta',
          'Intended Audience :: Developers',
          'Programming Language :: Cython',
          'Programming Language :: Python',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
      ],
  
      ext_modules=extensions
  )
  
subject: Remove the importing of the "cythonize" function.