old_contents: #!/usr/bin/env python
  
  # Copyright (c) 2015 - The MITRE Corporation
  # For license information, see the LICENSE.txt file
  
  from os.path import abspath, dirname, join
  import sys
  
  from setuptools import setup, find_packages
  
  BASE_DIR = dirname(abspath(__file__))
  VERSION_FILE = join(BASE_DIR, 'sdv', 'version.py')
  
  def get_version():
      with open(VERSION_FILE) as f:
          for line in f.readlines():
              if line.startswith("__version__"):
                  version = line.split()[-1].strip('"')
                  return version
          raise AttributeError("Package does not have a __version__")
  
  
  py_maj, py_minor = sys.version_info[:2]
  
  if (py_maj, py_minor) < (2, 6):
      raise Exception('stix-validator requires at least Python 2.6/2.7')
  
  fn_readme = join(BASE_DIR, "README.rst")
  with open(fn_readme) as f:
      readme = f.read()
  
  install_requires = [
      'lxml>=3.3.5',
      'xlrd>=0.9.2',
      'ordereddict',
      'mixbox>=0.0.11',
      'python-dateutil'
  ]
  
  # Python 2.6 does not come with argparse
  try:
      import argparse
  except ImportError:
      install_requires.append('argparse')
  
  extras_require = {
      'docs': [
          'Sphinx==1.3.1',
          'sphinx_rtd_theme==0.1.8',
      ],
      'test': [
          "nose==1.3.0",
          "tox==1.6.1"
      ],
  }
  
  setup(
      name='stix-validator',
      description='APIs and scripts for validating STIX and CybOX documents.',
      author='The MITRE Corporation',
      author_email='stix@mitre.org',
      url='http://stix.mitre.org/',
      version=get_version(),
      packages=find_packages(),
      scripts=['sdv/scripts/stix-validator.py', 'sdv/scripts/cybox-validator.py',
               'sdv/scripts/profile-to-sch.py', 'sdv/scripts/profile-to-xslt.py'],
      include_package_data=True,
      install_requires=install_requires,
      extras_require=extras_require,
      long_description=readme,
      keywords="stix cybox xml validation validator stix-validator"
  )
  
new_contents: #!/usr/bin/env python
  
  # Copyright (c) 2015 - The MITRE Corporation
  # For license information, see the LICENSE.txt file
  
  from os.path import abspath, dirname, join
  import sys
  
  from setuptools import setup, find_packages
  
  BASE_DIR = dirname(abspath(__file__))
  VERSION_FILE = join(BASE_DIR, 'sdv', 'version.py')
  
  def get_version():
      with open(VERSION_FILE) as f:
          for line in f.readlines():
              if line.startswith("__version__"):
                  version = line.split()[-1].strip('"')
                  return version
          raise AttributeError("Package does not have a __version__")
  
  
  py_maj, py_minor = sys.version_info[:2]
  
  if (py_maj, py_minor) < (2, 6) or (py_maj == 3 and py_minor < 3):
      raise Exception('stix-validator requires Python 2.6, 2.7 or 3.3+')
  
  fn_readme = join(BASE_DIR, "README.rst")
  with open(fn_readme) as f:
      readme = f.read()
  
  install_requires = [
      'lxml>=3.3.5',
      'xlrd>=0.9.2',
      'ordereddict',
      'mixbox>=0.0.11',
      'python-dateutil'
  ]
  
  # Python 2.6 does not come with argparse
  try:
      import argparse
  except ImportError:
      install_requires.append('argparse')
  
  extras_require = {
      'docs': [
          'Sphinx==1.3.1',
          'sphinx_rtd_theme==0.1.8',
      ],
      'test': [
          "nose==1.3.0",
          "tox==1.6.1"
      ],
  }
  
  setup(
      name='stix-validator',
      description='APIs and scripts for validating STIX and CybOX documents.',
      author='The MITRE Corporation',
      author_email='stix@mitre.org',
      url='http://stix.mitre.org/',
      version=get_version(),
      packages=find_packages(),
      scripts=['sdv/scripts/stix-validator.py', 'sdv/scripts/cybox-validator.py',
               'sdv/scripts/profile-to-sch.py', 'sdv/scripts/profile-to-xslt.py'],
      include_package_data=True,
      install_requires=install_requires,
      extras_require=extras_require,
      long_description=readme,
      keywords="stix cybox xml validation validator stix-validator"
  )
  
subject: Update required Python version error message