old_contents: #!/usr/bin/env python
  
  from setuptools import setup, find_packages
  
  setup(name='potter',
        version='0.1.0',
        packages=find_packages(),
        entry_points={
            'console_scripts': [
                'potter = potter:main'
            ]
        }
        )
  
new_contents: #!/usr/bin/env python
  
  from setuptools import setup, find_packages
  
  setup(name='potter',
        version='0.1.0',
        packages=find_packages(),
        entry_points={
            'console_scripts': [
                'potter = potter:main'
            ]
        },
        install_requires=[
            'docker-py >= 1.7',
            'pyyaml >= 3.0',
        ]
        )
  
subject: Add applicable requirements to setup.py