old_contents: import sys
  
  try:
    from setuptools import setup, find_packages
  except ImportError:
    print 'Error: setuptools is required. http://pypi.python.org/pypi/setuptools'
    sys.exit(1)
  
  setup(
    name          = 'sensei-python',
    version       = '1.0.0',
    description   = 'Sensei client library',
    author        = 'senseidb.com',
    url           = 'https://github.com/senseidb/sensei',
    packages      = find_packages(),
    classifiers   = ['Development Status :: 5 - Production/Stable',
                     'Intended Audience :: Developers',
                     'License :: APL',
                     'Operating System :: OS Independent',
                     'Topic :: Internet'],
  )
  
new_contents: import sys
  
  try:
    from setuptools import setup, find_packages
  except ImportError:
    print 'Error: setuptools is required. http://pypi.python.org/pypi/setuptools'
    sys.exit(1)
  
  setup(
    name          = 'sensei-python',
    version       = '1.0.0',
    description   = 'Sensei client library',
    author        = 'senseidb.com',
    url           = 'https://github.com/senseidb/sensei',
    install_requires = ['pyparsing', 'twisted'],
    packages      = find_packages(),
    classifiers   = ['Development Status :: 5 - Production/Stable',
                     'Intended Audience :: Developers',
                     'License :: APL',
                     'Operating System :: OS Independent',
                     'Topic :: Internet'],
  )
  
subject: Add dependencies in setup.py.