old_contents: #!/usr/bin/env python
  from codecs import open
  import os
  from setuptools import setup
  
  
  os.environ['COPY_EXTENDED_ATTRIBUTES_DISABLE'] = 'true'
  os.environ['COPYFILE_DISABLE'] = 'true'
  
  with open('README.rst', 'r', 'utf-8') as f:
      readme = f.read()
  
  setup(
      name='pydot_ng',
      version='1.0.1.dev0',
      description='Python interface to Graphviz\'s Dot',
      author='Ero Carrera',
      author_email='ero@dkbza.org',
      maintainer='Sebastian Kalinowski',
      maintainer_email='sebastian@kalinowski.eu',
      url="https://github.com/pydot/pydot-ng",
      license='MIT',
      keywords='graphviz dot graphs visualization',
      platforms=['any'],
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Intended Audience :: Science/Research',
          'License :: OSI Approved :: MIT License',
          'Natural Language :: English',
          'Operating System :: OS Independent',
          'Programming Language :: Python',
          'Topic :: Scientific/Engineering :: Visualization',
          'Topic :: Software Development :: Libraries :: Python Modules'],
      long_description=readme,
      packages=['pydot_ng'],
      package_dir={'pydot_ng': 'pydot_ng'},
      install_requires=['pyparsing>=2.0.1'],
  )
  
new_contents: #!/usr/bin/env python
  import os
  from codecs import open
  
  from setuptools import setup
  
  
  # NOTE(prmtl): found reason on https://superuser.com/q/259703
  os.environ['COPY_EXTENDED_ATTRIBUTES_DISABLE'] = 'true'
  os.environ['COPYFILE_DISABLE'] = 'true'
  
  
  with open('README.rst', 'r', 'utf-8') as f:
      readme = f.read()
  
  
  setup(
      name='pydot_ng',
      version='1.0.1.dev0',
      description='Python interface to Graphviz\'s Dot',
      author='Ero Carrera',
      author_email='ero@dkbza.org',
      maintainer='Sebastian Kalinowski',
      maintainer_email='sebastian@kalinowski.eu',
      url="https://github.com/pydot/pydot-ng",
      license='MIT',
      keywords='graphviz dot graphs visualization',
      platforms=['any'],
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Intended Audience :: Science/Research',
          'License :: OSI Approved :: MIT License',
          'Natural Language :: English',
          'Operating System :: OS Independent',
          'Programming Language :: Python',
          'Topic :: Scientific/Engineering :: Visualization',
          'Topic :: Software Development :: Libraries :: Python Modules'],
      long_description=readme,
      packages=['pydot_ng'],
      package_dir={'pydot_ng': 'pydot_ng'},
      install_requires=['pyparsing>=2.0.1'],
  )
  
subject: Add info abou mysterious env vars in setup.py