old_contents: #!/usr/bin/env python
  import io
  
  from setuptools import setup, Extension
  
  
  with io.open('README.rst', encoding='utf8') as readme:
      long_description = readme.read()
  
  
  setup(
      name="pyspamsum",
      version="1.0.5",
      description="A Python wrapper for Andrew Tridgell's spamsum algorithm",
      long_description=long_description,
      author="Russell Keith-Magee",
      author_email="russell@keith-magee.com",
      url='http://github.com/freakboy3742/pyspamsum/',
      license="New BSD",
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'License :: OSI Approved :: BSD License',
          'Operating System :: OS Independent',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: 3.7',
          'Programming Language :: Python :: 3.8',
          'Programming Language :: Python :: 3.9',
          'Topic :: Text Processing',
          'Topic :: Utilities',
      ],
      ext_modules=[
          Extension(
              "spamsum", [
                  "pyspamsum.c",
                  "spamsum.c",
                  "edit_dist.c",
              ]
          )
      ],
      test_suite='tests',
  )
  
new_contents: #!/usr/bin/env python
  import io
  
  from setuptools import setup, Extension
  
  
  with io.open('README.rst', encoding='utf8') as readme:
      long_description = readme.read()
  
  
  setup(
      name="pyspamsum",
      version="1.0.5",
      description="A Python wrapper for Andrew Tridgell's spamsum algorithm",
      long_description=long_description,
      long_description_content_type='text/x-rst',
      author="Russell Keith-Magee",
      author_email="russell@keith-magee.com",
      url='http://github.com/freakboy3742/pyspamsum/',
      license="New BSD",
      classifiers=[
          'Development Status :: 5 - Production/Stable',
          'License :: OSI Approved :: BSD License',
          'Operating System :: OS Independent',
          'Programming Language :: Python :: 3',
          'Programming Language :: Python :: 3.6',
          'Programming Language :: Python :: 3.7',
          'Programming Language :: Python :: 3.8',
          'Programming Language :: Python :: 3.9',
          'Topic :: Text Processing',
          'Topic :: Utilities',
      ],
      ext_modules=[
          Extension(
              "spamsum", [
                  "pyspamsum.c",
                  "spamsum.c",
                  "edit_dist.c",
              ]
          )
      ],
      test_suite='tests',
  )
  
subject: Add a content type description to keep twine happy.