old_contents: 
  from distutils.core import setup, Extension
  from Cython.Distutils import build_ext
  import numpy as np
  from glob import glob
  
  CLASSIFIERS = """\
  Development Status :: 5 - Production/Stable
  Intended Audience :: Science/Research
  Intended Audience :: Developers
  License :: OSI Approved
  Programming Language :: Python
  Programming Language :: Python :: 2
  Programming Language :: Python :: 2.6
  Programming Language :: Python :: 2.7
  Programming Language :: Python :: 3
  Programming Language :: Python :: 3.2
  Programming Language :: Python :: 3.3
  Topic :: Software Development
  Operating System :: POSIX
  Operating System :: Unix
  
  """
  
  sources =['pytron/tron.pyx', 'pytron/src/tron.cpp', 'pytron/src/tron_helper.cpp'] + \
      glob('pytron/src/blas/*.c')
  
  
  setup(
      name='pytron',
      description='Python bindings for TRON optimizer',
      long_description=open('README.rst').read(),
      version='0.1',
      author='Fabian Pedregosa',
      author_email='f@fabianp.net',
      url='http://pypi.python.org/pypi/pytron',
      packages=['pytron'],
      classifiers=[_f for _f in CLASSIFIERS.split('\n') if _f],
      license='Simplified BSD',
      requires=['numpy', 'scipy'],
      cmdclass={'build_ext': build_ext},
      ext_modules=[Extension('pytron.tron',
          sources=sources,
          language='c++', include_dirs=[np.get_include(), 'pytron/src/'])],
  
  )
  
new_contents: from Cython.Distutils import build_ext
  import numpy as np
  from glob import glob
  from setuptools import setup, Extension
  
  CLASSIFIERS = """\
  Development Status :: 5 - Production/Stable
  Intended Audience :: Science/Research
  Intended Audience :: Developers
  License :: OSI Approved
  Programming Language :: Python
  Programming Language :: Python :: 2
  Programming Language :: Python :: 2.6
  Programming Language :: Python :: 2.7
  Programming Language :: Python :: 3
  Programming Language :: Python :: 3.2
  Programming Language :: Python :: 3.3
  Topic :: Software Development
  Operating System :: POSIX
  Operating System :: Unix
  
  """
  
  sources =['pytron/tron.pyx', 'pytron/src/tron.cpp', 'pytron/src/tron_helper.cpp'] + \
      glob('pytron/src/blas/*.c')
  
  
  setup(
      name='pytron',
      description='Python bindings for TRON optimizer',
      long_description=open('README.rst').read(),
      version='0.1',
      author='Fabian Pedregosa',
      author_email='f@bianp.net',
      url='http://pypi.python.org/pypi/pytron',
      packages=['pytron'],
      classifiers=[_f for _f in CLASSIFIERS.split('\n') if _f],
      license='Simplified BSD',
      requires=['numpy', 'scipy'],
      cmdclass={'build_ext': build_ext},
      ext_modules=[Extension('pytron.tron',
          sources=sources,
          language='c++', include_dirs=[np.get_include(), 'pytron/src/'])],
  
  )
  
subject: Add setuptool