old_contents: from setuptools import setup, find_packages
  import sys, os.path
  
  # Don't import gym module here, since deps may not be installed
  sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'gym'))
  from version import VERSION
  
  # Environment-specific dependencies.
  extras = {
    'atari': ['atari_py>=0.1.4', 'Pillow', 'PyOpenGL'],
    'box2d': ['box2d-py>=2.3.5'],
    'classic_control': ['PyOpenGL'],
    'mujoco': ['mujoco_py>=1.50, <2.1', 'imageio'],
    'robotics': ['mujoco_py>=1.50, <2.1', 'imageio'],
  }
  
  # Meta dependency groups.
  all_deps = []
  for group_name in extras:
      all_deps += extras[group_name]
  extras['all'] = all_deps
  
  setup(name='gym',
        version=VERSION,
        description='The OpenAI Gym: A toolkit for developing and comparing your reinforcement learning agents.',
        url='https://github.com/openai/gym',
        author='OpenAI',
        author_email='gym@openai.com',
        license='',
        packages=[package for package in find_packages()
                  if package.startswith('gym')],
        zip_safe=False,
        install_requires=[
            'scipy', 'numpy>=1.10.4', 'six', 'pyglet>=1.2.0',
        ],
        extras_require=extras,
        package_data={'gym': [
          'envs/mujoco/assets/*.xml',
          'envs/classic_control/assets/*.png',
          'envs/robotics/assets/LICENSE.md',
          'envs/robotics/assets/fetch/*.xml',
          'envs/robotics/assets/hand/*.xml',
          'envs/robotics/assets/stls/fetch/*.stl',
          'envs/robotics/assets/stls/hand/*.stl',
          'envs/robotics/assets/textures/*.png']
        },
        tests_require=['pytest', 'mock'],
        python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*',
        classifiers=[
            'Programming Language :: Python :: 2',
            'Programming Language :: Python :: 2.7',
            'Programming Language :: Python :: 3',
            'Programming Language :: Python :: 3.5',
            'Programming Language :: Python :: 3.6',
            'Programming Language :: Python :: 3.7',
        ],
  )
  
new_contents: from setuptools import setup, find_packages
  import sys, os.path
  
  # Don't import gym module here, since deps may not be installed
  sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'gym'))
  from version import VERSION
  
  # Environment-specific dependencies.
  extras = {
    'atari': ['atari_py>=0.1.4', 'Pillow', 'PyOpenGL', 'opencv-python'],
    'box2d': ['box2d-py>=2.3.5'],
    'classic_control': ['PyOpenGL'],
    'mujoco': ['mujoco_py>=1.50, <2.1', 'imageio'],
    'robotics': ['mujoco_py>=1.50, <2.1', 'imageio'],
  }
  
  # Meta dependency groups.
  all_deps = []
  for group_name in extras:
      all_deps += extras[group_name]
  extras['all'] = all_deps
  
  setup(name='gym',
        version=VERSION,
        description='The OpenAI Gym: A toolkit for developing and comparing your reinforcement learning agents.',
        url='https://github.com/openai/gym',
        author='OpenAI',
        author_email='gym@openai.com',
        license='',
        packages=[package for package in find_packages()
                  if package.startswith('gym')],
        zip_safe=False,
        install_requires=[
            'scipy', 'numpy>=1.10.4', 'six', 'pyglet>=1.2.0',
        ],
        extras_require=extras,
        package_data={'gym': [
          'envs/mujoco/assets/*.xml',
          'envs/classic_control/assets/*.png',
          'envs/robotics/assets/LICENSE.md',
          'envs/robotics/assets/fetch/*.xml',
          'envs/robotics/assets/hand/*.xml',
          'envs/robotics/assets/stls/fetch/*.stl',
          'envs/robotics/assets/stls/hand/*.stl',
          'envs/robotics/assets/textures/*.png']
        },
        tests_require=['pytest', 'mock'],
        python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*',
        classifiers=[
            'Programming Language :: Python :: 2',
            'Programming Language :: Python :: 2.7',
            'Programming Language :: Python :: 3',
            'Programming Language :: Python :: 3.5',
            'Programming Language :: Python :: 3.6',
            'Programming Language :: Python :: 3.7',
        ],
  )
  
subject: add opencv dependency for atari to fix tests