old_contents: import contextlib
  import os
  import platform
  from codecs import open  # To use a consistent encoding
  from setuptools import setup, Extension
  from setuptools.command.build_ext import build_ext
  
  # Get the current directory path.
  here = os.path.abspath(os.path.dirname(__file__))
  
  # Extract the description from the top-level README.
  with open(os.path.join(here, 'README.md'), encoding='utf-8') as f:
      long_description = f.read()
  description = 'dartpy provides python bindings for DART.'
  
  # Set the dependencies depending on the platform
  system = platform.system()
  if system == 'Linux':
      distro = platform.linux_distribution()[1]
      if distro == '14.04':
          install_requires = ['numpy', 'vispy', 'PySide', 'pyassimp', 'pytest']
      else:
          install_requires = ['numpy', 'vispy', 'PyQt5', 'pyassimp', 'pytest']
  else:
      install_requires = ['numpy', 'vispy', 'PyQt5', 'pyassimp', 'pytest']
  
  
  # See: http://www.astropython.org/snippet/2009/10/chdir-context-manager
  @contextlib.contextmanager
  def chdir(dirname=None):
      """ Context manager for changing directories. """
      curdir = os.getcwd()
      try:
          if dirname is not None:
              os.chdir(dirname)
          yield
      finally:
          os.chdir(curdir)
  
  
  # See: https://github.com/libdynd/dynd-python/blob/master/setup.py
  class cmake_build_ext(build_ext):
      """ Wrapper class that builds the extension using CMake. """
  
      def run(self):
          """ Build using CMake from the specified build directory. """
          self.mkpath(self.build_temp)
          with chdir(self.build_temp):
              self.spawn(['cmake', here])
              self.spawn(['make'])
  
  
  # Set up the python package wrapping this extension.
  setup(
      name='dart',
      version='0.0.1',
      description=description,
      long_description=long_description,
      ext_modules=[Extension('dart', sources=[])],
      url='https://github.com/personalrobotics/dartpy',
      author='Michael Koval',
      author_email='mkoval@cs.cmu.edu',
      packages=['dart'],
      license='BSD',
      keywords='dartsim robotics',
      classifiers=[
          'Development Status :: 1 - Planning',
          'License :: BSD',
          'Intended Audience :: Developers',
      ],
      # cmdclass={'build_ext': cmake_build_ext},
      install_requires=install_requires
  )
  
new_contents: import contextlib
  import os
  import platform
  from codecs import open  # To use a consistent encoding
  from setuptools import setup, Extension
  from setuptools.command.build_ext import build_ext
  
  # Get the current directory path.
  here = os.path.abspath(os.path.dirname(__file__))
  
  # Extract the description from the top-level README.
  with open(os.path.join(here, 'README.md'), encoding='utf-8') as f:
      long_description = f.read()
  description = 'dartpy provides python bindings for DART.'
  
  # Set the dependencies depending on the platform
  system = platform.system()
  if system == 'Linux':
      distro = platform.linux_distribution()[1]
      if distro == '14.04':
          install_requires = ['numpy', 'vispy', 'pyassimp', 'pytest']
      else:
          install_requires = ['numpy', 'vispy', 'PyQt5', 'pyassimp', 'pytest']
  else:
      install_requires = ['numpy', 'vispy', 'PyQt5', 'pyassimp', 'pytest']
  
  
  # See: http://www.astropython.org/snippet/2009/10/chdir-context-manager
  @contextlib.contextmanager
  def chdir(dirname=None):
      """ Context manager for changing directories. """
      curdir = os.getcwd()
      try:
          if dirname is not None:
              os.chdir(dirname)
          yield
      finally:
          os.chdir(curdir)
  
  
  # See: https://github.com/libdynd/dynd-python/blob/master/setup.py
  class cmake_build_ext(build_ext):
      """ Wrapper class that builds the extension using CMake. """
  
      def run(self):
          """ Build using CMake from the specified build directory. """
          self.mkpath(self.build_temp)
          with chdir(self.build_temp):
              self.spawn(['cmake', here])
              self.spawn(['make'])
  
  
  # Set up the python package wrapping this extension.
  setup(
      name='dart',
      version='0.0.1',
      description=description,
      long_description=long_description,
      ext_modules=[Extension('dart', sources=[])],
      url='https://github.com/personalrobotics/dartpy',
      author='Michael Koval',
      author_email='mkoval@cs.cmu.edu',
      packages=['dart'],
      license='BSD',
      keywords='dartsim robotics',
      classifiers=[
          'Development Status :: 1 - Planning',
          'License :: BSD',
          'Intended Audience :: Developers',
      ],
      # cmdclass={'build_ext': cmake_build_ext},
      install_requires=install_requires
  )
  
subject: Remove PySide from pip dependency