old_contents: from setuptools import setup, find_packages
  from os import path
  import re
  import io
  
  
  VERSION = re.search(
      "VERSION = '([^']+)'",
      io.open(
          path.join(path.dirname(__file__), 'cairocffi', '__init__.py'),
          encoding='utf-8',
      ).read().strip()
  ).group(1)
  
  LONG_DESCRIPTION = io.open(
      path.join(path.dirname(__file__), 'README.rst'),
      encoding='utf-8',
  ).read()
  
  
  setup(
      name='cairocffi',
      version=VERSION,
      url='https://github.com/SimonSapin/cairocffi',
      license='BSD',
      author='Simon Sapin',
      author_email='simon.sapin@exyr.org',
      description='cffi-based cairo bindings for Python',
      long_description=LONG_DESCRIPTION,
      classifiers=[
          'Development Status :: 4 - Beta',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: BSD License',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 3',
          'Topic :: Multimedia :: Graphics',
      ],
      packages=find_packages(),
      install_requires=['cffi>=0.6'],
  )
  
new_contents: from setuptools import setup, find_packages
  from os import path
  import re
  import io
  
  
  VERSION = re.search(
      "VERSION = '([^']+)'",
      io.open(
          path.join(path.dirname(__file__), 'cairocffi', '__init__.py'),
          encoding='utf-8',
      ).read().strip()
  ).group(1)
  
  LONG_DESCRIPTION = io.open(
      path.join(path.dirname(__file__), 'README.rst'),
      encoding='utf-8',
  ).read()
  
  
  setup(
      name='cairocffi',
      version=VERSION,
      url='https://github.com/SimonSapin/cairocffi',
      license='BSD',
      author='Simon Sapin',
      author_email='simon.sapin@exyr.org',
      description='cffi-based cairo bindings for Python',
      long_description=LONG_DESCRIPTION,
      classifiers=[
          'Development Status :: 4 - Beta',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: BSD License',
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 3',
          'Topic :: Multimedia :: Graphics',
      ],
      packages=find_packages(),
      install_requires=['cffi>=0.6'],
      extras_require={'xcb': ['xcffib']}
  )
  
subject: Add xcb install option