old_contents: from distutils.core import setup
  import ast
  import os
  import codecs
  
  classifiers=[
      'Development Status :: 5 - Production/Stable',
      'Intended Audience :: Developers',
      'License :: OSI Approved :: MIT License',
      'Operating System :: OS Independent',
      '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',
      'Programming Language :: Python :: 3.4',
      'Topic :: Software Development :: Libraries :: Python Modules',
      'Topic :: Text Processing :: Markup :: HTML'
      ]
  
  packages = ['html5lib'] + ['html5lib.'+name
                             for name in os.listdir(os.path.join('html5lib'))
                             if os.path.isdir(os.path.join('html5lib', name)) and
                             not name.startswith('.') and name != 'tests']
  
  current_dir = os.path.dirname(__file__)
  with codecs.open(os.path.join(current_dir, 'README.rst'), 'r', 'utf8') as readme_file:
      with codecs.open(os.path.join(current_dir, 'CHANGES.rst'), 'r', 'utf8') as changes_file:
          long_description = readme_file.read() + '\n' + changes_file.read()
  
  version = None
  with open(os.path.join("html5lib", "__init__.py"), "rb") as init_file:
      t = ast.parse(init_file.read(), filename="__init__.py", mode="exec")
      assert isinstance(t, ast.Module)
      assignments = filter(lambda x: isinstance(x, ast.Assign), t.body)
      for a in assignments:
          if (len(a.targets) == 1 and
                isinstance(a.targets[0], ast.Name) and
                a.targets[0].id == "__version__" and
                isinstance(a.value, ast.Str)):
              version = a.value.s
  
  setup(name='html5lib',
        version=version,
        url='https://github.com/html5lib/html5lib-python',
        license="MIT License",
        description='HTML parser based on the WHATWG HTML specification',
        long_description=long_description,
        classifiers=classifiers,
        maintainer='James Graham',
        maintainer_email='james@hoppipolla.co.uk',
        packages=packages,
        install_requires=[
            'six',
        ],
        )
  
new_contents: import ast
  import os
  import codecs
  
  from setuptools import setup
  
  
  classifiers=[
      'Development Status :: 5 - Production/Stable',
      'Intended Audience :: Developers',
      'License :: OSI Approved :: MIT License',
      'Operating System :: OS Independent',
      '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',
      'Programming Language :: Python :: 3.4',
      'Topic :: Software Development :: Libraries :: Python Modules',
      'Topic :: Text Processing :: Markup :: HTML'
      ]
  
  packages = ['html5lib'] + ['html5lib.'+name
                             for name in os.listdir(os.path.join('html5lib'))
                             if os.path.isdir(os.path.join('html5lib', name)) and
                             not name.startswith('.') and name != 'tests']
  
  current_dir = os.path.dirname(__file__)
  with codecs.open(os.path.join(current_dir, 'README.rst'), 'r', 'utf8') as readme_file:
      with codecs.open(os.path.join(current_dir, 'CHANGES.rst'), 'r', 'utf8') as changes_file:
          long_description = readme_file.read() + '\n' + changes_file.read()
  
  version = None
  with open(os.path.join("html5lib", "__init__.py"), "rb") as init_file:
      t = ast.parse(init_file.read(), filename="__init__.py", mode="exec")
      assert isinstance(t, ast.Module)
      assignments = filter(lambda x: isinstance(x, ast.Assign), t.body)
      for a in assignments:
          if (len(a.targets) == 1 and
                isinstance(a.targets[0], ast.Name) and
                a.targets[0].id == "__version__" and
                isinstance(a.value, ast.Str)):
              version = a.value.s
  
  setup(name='html5lib',
        version=version,
        url='https://github.com/html5lib/html5lib-python',
        license="MIT License",
        description='HTML parser based on the WHATWG HTML specification',
        long_description=long_description,
        classifiers=classifiers,
        maintainer='James Graham',
        maintainer_email='james@hoppipolla.co.uk',
        packages=packages,
        install_requires=[
            'six',
        ],
        extras_require={
            ":python_version == '2.6'": ["ordereddict"],
            "lxml:python_implementation == 'CPython'": ["lxml"],
            "genshi": ["genshi"],
            "datrie": ["datrie"],
            "charade": ["charade"],
            "all": ["genshi", "datrie", "charade"],
            "all:python_implementation == 'CPython'": ["lxml"],
        },
        )
  
subject: Move all optional dependencies into setup.py