old_contents: from setuptools import setup
  import os
  import re
  
  
  def get_version(package):
      """
      Return package version as listed in `__version__` in `init.py`.
      """
      init_py = open(os.path.join(package, '__init__.py')).read()
      return re.search("__version__ = ['\"]([^'\"]+)['\"]", init_py).group(1)
  
  
  def get_packages(package):
      """
      Return root package and all sub-packages.
      """
      # Nod to DRF for this function
      return [dirpath
              for dirpath, dirnames, filenames in os.walk(package)
              if os.path.exists(os.path.join(dirpath, '__init__.py'))]
  
  setup(name="hedwig-py",
        version=get_version('hedwig'),
        description="Python emitter and consumer for Hedwig",
        url="https://github.com/ofpiyush/hedwig-py/",
        author="Piyush",
        author_email="mail@ofpiyush.in",
        license='MIT',
        packages=get_packages('hedwig'),
        install_requires=[
            'pika'
        ],
        zip_safe=False,
        classifiers=[
            'Development Status :: 3 - Alpha',
            'Intended Audience :: Developers',
            'License :: OSI Approved :: MIT License',
            'Operating System :: OS Independent',
            'Topic :: System :: Distributed Computing',
        ]
        )
  
new_contents: from setuptools import setup
  import os
  import re
  
  with open('requirements.txt') as f:
      requirements = f.read().splitlines()
  
  
  def get_version(package):
      """
      Return package version as listed in `__version__` in `init.py`.
      """
      init_py = open(os.path.join(package, '__init__.py')).read()
      return re.search("__version__ = ['\"]([^'\"]+)['\"]", init_py).group(1)
  
  
  def get_packages(package):
      """
      Return root package and all sub-packages.
      """
      # Nod to DRF for this function
      return [dirpath
              for dirpath, dirnames, filenames in os.walk(package)
              if os.path.exists(os.path.join(dirpath, '__init__.py'))]
  
  
  setup(name="hedwig-py",
        version=get_version('hedwig'),
        description="Python emitter and consumer for Hedwig",
        url="https://github.com/ofpiyush/hedwig-py/",
        author="Piyush",
        author_email="mail@ofpiyush.in",
        license='MIT',
        packages=get_packages('hedwig'),
        install_requires=requirements,
        zip_safe=False,
        classifiers=[
            'Development Status :: 3 - Alpha',
            'Intended Audience :: Developers',
            'License :: OSI Approved :: MIT License',
            'Operating System :: OS Independent',
            'Topic :: System :: Distributed Computing',
        ]
        )
  
subject: Use requirements file for setup