new_contents: from setuptools import setup, Extension, find_packages
  from Cython.Build import cythonize
  
  # Cython extensions
  sources = ["FastxIO/fastx.pyx", "FastxIO/reverse_complement.c"]
  extensions = [Extension("FastxIO.fastx", sources, extra_compile_args=['-O3'])]
  
  setup(
      name = "FastxIO",
      version = '0.0.0',
      packages = find_packages(exclude=['tests']),
      ext_modules = cythonize(extensions),
      description = "Read FASTA and FASTQ files.",
      author = "Marcus Kinsella",
      license = "MIT",
      install_requires = [
          'cython'
          ],
  )
  
  
  
subject: Add setup.