old_contents: from setuptools import setup, find_packages
  
  ver = {}
  try:
      with open('control/_version.py') as fd:
          exec(fd.read(), ver)
      version = ver.get('__version__', 'dev')
  except IOError:
      version = 'dev'
  
  with open('README.rst') as fp:
      long_description = fp.read()
  
  CLASSIFIERS = """
  Development Status :: 3 - Alpha
  Intended Audience :: Science/Research
  Intended Audience :: Developers
  License :: OSI Approved :: BSD License
  Programming Language :: Python :: 3
  Programming Language :: Python :: 3.7
  Programming Language :: Python :: 3.8
  Programming Language :: Python :: 3.9
  Topic :: Software Development
  Topic :: Scientific/Engineering
  Operating System :: Microsoft :: Windows
  Operating System :: POSIX
  Operating System :: Unix
  Operating System :: MacOS
  """
  
  setup(
      name='control',
      version=version,
      author='Python Control Developers',
      author_email='python-control-developers@lists.sourceforge.net',
      url='http://python-control.org',
      description='Python Control Systems Library',
      long_description=long_description,
      packages=find_packages(exclude=['benchmarks']),
      classifiers=[f for f in CLASSIFIERS.split('\n') if f],
      install_requires=['numpy',
                        'scipy',
                        'matplotlib'],
      extras_require={
         'test': ['pytest', 'pytest-timeout'],
         'slycot': [ 'slycot>=0.4.0' ]
      }
  )
  
new_contents: from setuptools import setup, find_packages
  
  ver = {}
  try:
      with open('control/_version.py') as fd:
          exec(fd.read(), ver)
      version = ver.get('__version__', 'dev')
  except IOError:
      version = 'dev'
  
  with open('README.rst') as fp:
      long_description = fp.read()
  
  CLASSIFIERS = """
  Development Status :: 3 - Alpha
  Intended Audience :: Science/Research
  Intended Audience :: Developers
  License :: OSI Approved :: BSD License
  Programming Language :: Python :: 3
  Programming Language :: Python :: 3.7
  Programming Language :: Python :: 3.8
  Programming Language :: Python :: 3.9
  Topic :: Software Development
  Topic :: Scientific/Engineering
  Operating System :: Microsoft :: Windows
  Operating System :: POSIX
  Operating System :: Unix
  Operating System :: MacOS
  """
  
  setup(
      name='control',
      version=version,
      author='Python Control Developers',
      author_email='python-control-developers@lists.sourceforge.net',
      url='http://python-control.org',
      project_urls={
          'Source': 'https://github.com/python-control/python-control',
      },
      description='Python Control Systems Library',
      long_description=long_description,
      packages=find_packages(exclude=['benchmarks']),
      classifiers=[f for f in CLASSIFIERS.split('\n') if f],
      install_requires=['numpy',
                        'scipy',
                        'matplotlib'],
      extras_require={
         'test': ['pytest', 'pytest-timeout'],
         'slycot': [ 'slycot>=0.4.0' ]
      }
  )
  
subject: add GitHub URL for PyPi