<filename>nbody/setup.py
from distutils.core import setup
from Cython.Build import cythonize


setup(name="nbody", ext_modules=cythonize("nbody.pyx"))

<filename>nbody/setup.py
from distutils.core import setup
from Cython.Build import cythonize


setup(name="nbody", ext_modules=cythonize("nbody.pyx"))
