old_contents: #!/usr/bin/env python
  """SimPEG: Simulation and Parameter Estimation in Geophysics
  
  SimPEG is a python package for simulation and gradient based
  parameter estimation in the context of geophysical applications.
  """
  
  from distutils.core import setup
  from setuptools import find_packages
  from Cython.Build import cythonize
  import numpy as np
  
  CLASSIFIERS = [
  'Development Status :: 4 - Beta',
  'Intended Audience :: Developers',
  'Intended Audience :: Science/Research',
  'License :: OSI Approved :: MIT License',
  'Programming Language :: Python',
  'Topic :: Scientific/Engineering',
  'Topic :: Scientific/Engineering :: Mathematics',
  'Topic :: Scientific/Engineering :: Physics',
  'Operating System :: Microsoft :: Windows',
  'Operating System :: POSIX',
  'Operating System :: Unix',
  'Operating System :: MacOS',
  'Natural Language :: English',
  ]
  
  import os, os.path
  
  with open("README.rst") as f:
      LONG_DESCRIPTION = ''.join(f.readlines())
  
  setup(
      name = "SimPEG",
      version = "0.1.3",
      packages = find_packages(),
      install_requires = ['numpy>=1.7',
                          'scipy>=0.13'
                         ],
      author = "Rowan Cockett",
      author_email = "rowan@3ptscience.com",
      description = "SimPEG: Simulation and Parameter Estimation in Geophysics",
      long_description = LONG_DESCRIPTION,
      license = "MIT",
      keywords = "geophysics inverse problem",
      url = "http://simpeg.xyz/",
      download_url = "http://github.com/simpeg/simpeg",
      classifiers=CLASSIFIERS,
      platforms = ["Windows", "Linux", "Solaris", "Mac OS-X", "Unix"],
      use_2to3 = False,
      include_dirs=[np.get_include()],
      ext_modules = cythonize('SimPEG/Utils/interputils_cython.pyx')
  )
  
new_contents: #!/usr/bin/env python
  """SimPEG: Simulation and Parameter Estimation in Geophysics
  
  SimPEG is a python package for simulation and gradient based
  parameter estimation in the context of geophysical applications.
  """
  
  from distutils.core import setup
  from setuptools import find_packages
  from Cython.Build import cythonize
  import numpy as np
  
  CLASSIFIERS = [
  'Development Status :: 4 - Beta',
  'Intended Audience :: Developers',
  'Intended Audience :: Science/Research',
  'License :: OSI Approved :: MIT License',
  'Programming Language :: Python',
  'Topic :: Scientific/Engineering',
  'Topic :: Scientific/Engineering :: Mathematics',
  'Topic :: Scientific/Engineering :: Physics',
  'Operating System :: Microsoft :: Windows',
  'Operating System :: POSIX',
  'Operating System :: Unix',
  'Operating System :: MacOS',
  'Natural Language :: English',
  ]
  
  import os, os.path
  
  with open("README.rst") as f:
      LONG_DESCRIPTION = ''.join(f.readlines())
  
  setup(
      name = "SimPEG",
      version = "0.1.3",
      packages = find_packages(),
      install_requires = ['numpy>=1.7',
                          'scipy>=0.13',
                          'Cython'
                         ],
      author = "Rowan Cockett",
      author_email = "rowan@3ptscience.com",
      description = "SimPEG: Simulation and Parameter Estimation in Geophysics",
      long_description = LONG_DESCRIPTION,
      license = "MIT",
      keywords = "geophysics inverse problem",
      url = "http://simpeg.xyz/",
      download_url = "http://github.com/simpeg/simpeg",
      classifiers=CLASSIFIERS,
      platforms = ["Windows", "Linux", "Solaris", "Mac OS-X", "Unix"],
      use_2to3 = False,
      include_dirs=[np.get_include()],
      ext_modules = cythonize('SimPEG/Utils/interputils_cython.pyx')
  )
  
subject: Add Cython dependency