old_contents: #!/usr/bin/env python3
  
  from __future__ import division, print_function, unicode_literals
  
  from setuptools import find_packages, setup
  from pip.req import parse_requirements
  
  
  setup(
      name='scientific_python',
      version='0.0.1',
      url='https://xray.sai.msu.ru/~malanchev/',
      license='MIT',
      author='Konstantin Malanchev',
      author_email='malanchev@physics.msu.ru',
      description='Package with materials for Scientific Python course for astronomers in Moscow University',
      packages=find_packages(),
      install_reqs=parse_requirements('requirements.txt', session='hack'),
      scripts=['bin/sci_py_example', 'bin/sci_py_import_all'],
      package_data={
          'scientific_python': ['misc', 'doc'],
      },
  #     test_suite='scientific_python.test.suite',
      classifiers=[
          'Intended Audience :: Education',
          'License :: OSI Approved :: MIT License',
          'Topic :: Education',
  
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
      ],
      keywords='sample education',
  )
  
new_contents: #!/usr/bin/env python3
  
  from setuptools import find_packages, setup
  from pip.req import parse_requirements
  
  
  setup(
      name='scientific_python',
      version='0.0.1',
      url='https://xray.sai.msu.ru/~malanchev/',
      license='MIT',
      author='Konstantin Malanchev',
      author_email='malanchev@physics.msu.ru',
      description='Package with materials for Scientific Python course for astronomers in Moscow University',
      packages=find_packages(),
      install_reqs=parse_requirements('requirements.txt', session='hack'),
      scripts=['bin/sci_py_example', 'bin/sci_py_import_all'],
      package_data={
          'scientific_python': ['misc', 'doc'],
      },
  #     test_suite='scientific_python.test.suite',
      classifiers=[
          'Intended Audience :: Education',
          'License :: OSI Approved :: MIT License',
          'Topic :: Education',
  
          'Programming Language :: Python :: 2',
          'Programming Language :: Python :: 2.7',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.4',
          'Programming Language :: Python :: 3.5',
          'Programming Language :: Python :: 3.6',
      ],
      keywords='sample education',
  )
  
subject: Remove __future__ import from setup.py