new_contents: #!/usr/bin/env python
  try:
      from setuptools import setup
  except ImportError:
      from distutils.core import setup
  
  setup(
        name='calcul',
        version='0.01',
        description='calcul',
        author='Ethal',
        author_email='developer@ethal-consulting.com',
        url='https://github.com/ethal/calcul',
  
subject: add setup file