old_contents: # Copyright (C) 2018 Łukasz Langa
  import ast
  import re
  from setuptools import setup
  import sys
  
  assert sys.version_info >= (3, 6, 0), "black requires Python 3.6+"
  from pathlib import Path  # noqa E402
  
  CURRENT_DIR = Path(__file__).parent
  
  
  def get_long_description():
      readme_md = CURRENT_DIR / 'README.md'
      try:
          import pypandoc
          return pypandoc.convert_file(str(readme_md), 'rst')
  
      except (IOError, ImportError):
          print()
          print(
              '\x1b[31m\x1b[1mwarning:\x1b[0m\x1b[31m pandoc not found, '
              'long description will be ugly (PyPI does not support .md).'
              '\x1b[0m'
          )
          print()
          with open(readme_md, encoding='utf8') as ld_file:
              return ld_file.read()
  
  
  def get_version():
      black_py = CURRENT_DIR / 'black.py'
      _version_re = re.compile(r'__version__\s+=\s+(?P<version>.*)')
      with open(black_py, 'r', encoding='utf8') as f:
          version = _version_re.search(f.read()).group('version')
      return str(ast.literal_eval(version))
  
  
  setup(
      name='black',
      version=get_version(),
      description="The uncompromising code formatter.",
      long_description=get_long_description(),
      keywords='automation formatter yapf autopep8 pyfmt gofmt rustfmt',
      author='Łukasz Langa',
      author_email='lukasz@langa.pl',
      url='https://github.com/ambv/black',
      license='MIT',
      py_modules=['black'],
      packages=['blib2to3', 'blib2to3.pgen2'],
      package_data={'blib2to3': ['*.txt']},
      python_requires=">=3.6",
      zip_safe=False,
      install_requires=['click', 'attrs'],
      test_suite='tests.test_black',
      classifiers=[
          'Development Status :: 3 - Alpha',
          'Environment :: Console',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: MIT License',
          'Operating System :: OS Independent',
          'Programming Language :: Python',
          'Programming Language :: Python :: 3.6',
          'Topic :: Software Development :: Libraries :: Python Modules',
          'Topic :: Software Development :: Quality Assurance',
      ],
      entry_points={'console_scripts': ['black=black:main']},
  )
  
new_contents: # Copyright (C) 2018 Łukasz Langa
  import ast
  import re
  from setuptools import setup
  import sys
  
  assert sys.version_info >= (3, 6, 0), "black requires Python 3.6+"
  from pathlib import Path  # noqa E402
  
  CURRENT_DIR = Path(__file__).parent
  
  
  def get_long_description():
      readme_md = CURRENT_DIR / 'README.md'
      try:
          import pypandoc
          return pypandoc.convert_file(str(readme_md), 'rst')
  
      except (IOError, ImportError):
          print()
          print(
              '\x1b[31m\x1b[1mwarning:\x1b[0m\x1b[31m pandoc not found, '
              'long description will be ugly (PyPI does not support .md).'
              '\x1b[0m'
          )
          print()
          with open(readme_md, encoding='utf8') as ld_file:
              return ld_file.read()
  
  
  def get_version():
      black_py = CURRENT_DIR / 'black.py'
      _version_re = re.compile(r'__version__\s+=\s+(?P<version>.*)')
      with open(black_py, 'r', encoding='utf8') as f:
          version = _version_re.search(f.read()).group('version')
      return str(ast.literal_eval(version))
  
  
  setup(
      name='black',
      version=get_version(),
      description="The uncompromising code formatter.",
      long_description=get_long_description(),
      keywords='automation formatter yapf autopep8 pyfmt gofmt rustfmt',
      author='Łukasz Langa',
      author_email='lukasz@langa.pl',
      url='https://github.com/ambv/black',
      license='MIT',
      py_modules=['black'],
      packages=['blib2to3', 'blib2to3.pgen2'],
      package_data={'blib2to3': ['*.txt']},
      python_requires=">=3.6",
      zip_safe=False,
      install_requires=['click', 'attrs'],
      test_suite='tests.test_black',
      classifiers=[
          'Development Status :: 3 - Alpha',
          'Environment :: Console',
          'Intended Audience :: Developers',
          'License :: OSI Approved :: MIT License',
          'Operating System :: OS Independent',
          'Programming Language :: Python',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: 3 :: Only',
          'Topic :: Software Development :: Libraries :: Python Modules',
          'Topic :: Software Development :: Quality Assurance',
      ],
      entry_points={'console_scripts': ['black=black:main']},
  )
  
subject: Add Python 3-only classifier