text: from setuptools import setup, Extension, find_packages
  import numpy
  
  extensions = Extension('Demo',  # your extension module name
                          sources = ['src/cfunction.c', 'src/_cfunction.c'] )
  
  setup(
      name='mydemo', # A name shown on Pypi.
      version='0.1', 
      ext_modules = [extensions],
      license='MIT',
      description='A toy python package with C extension',
      long_description=open('README.md').read(),
      install_requires=[],
      url='https://github.com/Tesla-Xiao/mydemo',
      author='Xiao Zhang',
      author_email='zhangxiao_0422@163.com',
      include_dirs = [numpy.get_include()]
  )
  