old_contents: #!/usr/bin/env python
  
  import sys
  
  from setuptools import find_packages, setup
  
  needs_pytest = {"pytest", "test"}.intersection(sys.argv)
  pytest_runner = ["pytest_runner"] if needs_pytest else []
  needs_wheel = {"bdist_wheel"}.intersection(sys.argv)
  wheel = ["wheel"] if needs_wheel else []
  
  with open("README.rst", "r") as f:
      long_description = f.read()
  
  setup(
      name="ufo2ft",
      use_scm_version={"write_to": "Lib/ufo2ft/_version.py"},
      author="Tal Leming, James Godfrey-Kittle",
      author_email="tal@typesupply.com",
      maintainer="Cosimo Lupo",
      maintainer_email="cosimo@anthrotype.com",
      description="A bridge between UFOs and FontTools.",
      long_description=long_description,
      url="https://github.com/googlefonts/ufo2ft",
      package_dir={"": "Lib"},
      packages=find_packages("Lib"),
      include_package_data=True,
      license="MIT",
      setup_requires=pytest_runner + wheel + ["setuptools_scm"],
      tests_require=["pytest>=2.8"],
      install_requires=[
          "fonttools[ufo]>=4.21.1",
          "cu2qu>=1.6.7",
          "compreffor>=0.4.6",
          "booleanOperations>=0.9.0",
      ],
      extras_require={
          "pathops": ["skia-pathops>=0.5.1"],
          "cffsubr": ["cffsubr>=0.2.8"],
      },
      python_requires=">=3.6",
      classifiers=[
          "Development Status :: 4 - Beta",
          "Environment :: Console",
          "Environment :: Other Environment",
          "Intended Audience :: Developers",
          "Intended Audience :: End Users/Desktop",
          "License :: OSI Approved :: MIT License",
          "Natural Language :: English",
          "Operating System :: OS Independent",
          "Programming Language :: Python",
          "Programming Language :: Python :: 2",
          "Programming Language :: Python :: 3",
          "Topic :: Multimedia :: Graphics",
          "Topic :: Multimedia :: Graphics :: Graphics Conversion",
          "Topic :: Multimedia :: Graphics :: Editors :: Vector-Based",
          "Topic :: Software Development :: Libraries :: Python Modules",
      ],
  )
  
new_contents: #!/usr/bin/env python
  
  import sys
  
  from setuptools import find_packages, setup
  
  needs_pytest = {"pytest", "test"}.intersection(sys.argv)
  pytest_runner = ["pytest_runner"] if needs_pytest else []
  needs_wheel = {"bdist_wheel"}.intersection(sys.argv)
  wheel = ["wheel"] if needs_wheel else []
  
  with open("README.rst", "r") as f:
      long_description = f.read()
  
  setup(
      name="ufo2ft",
      use_scm_version={"write_to": "Lib/ufo2ft/_version.py"},
      author="Tal Leming, James Godfrey-Kittle",
      author_email="tal@typesupply.com",
      maintainer="Cosimo Lupo",
      maintainer_email="cosimo@anthrotype.com",
      description="A bridge between UFOs and FontTools.",
      long_description=long_description,
      url="https://github.com/googlefonts/ufo2ft",
      package_dir={"": "Lib"},
      packages=find_packages("Lib"),
      include_package_data=True,
      license="MIT",
      setup_requires=pytest_runner + wheel + ["setuptools_scm"],
      tests_require=["pytest>=2.8"],
      install_requires=[
          "fonttools[ufo]>=4.21.1",
          "cu2qu>=1.6.7",
          "cffsubr>=0.2.8",
          "booleanOperations>=0.9.0",
      ],
      extras_require={
          "pathops": ["skia-pathops>=0.5.1"],
          "cffsubr": [],  # keep empty for backward compat
          "compreffor": ["compreffor>=0.4.6"],
      },
      python_requires=">=3.6",
      classifiers=[
          "Development Status :: 4 - Beta",
          "Environment :: Console",
          "Environment :: Other Environment",
          "Intended Audience :: Developers",
          "Intended Audience :: End Users/Desktop",
          "License :: OSI Approved :: MIT License",
          "Natural Language :: English",
          "Operating System :: OS Independent",
          "Programming Language :: Python",
          "Programming Language :: Python :: 2",
          "Programming Language :: Python :: 3",
          "Topic :: Multimedia :: Graphics",
          "Topic :: Multimedia :: Graphics :: Graphics Conversion",
          "Topic :: Multimedia :: Graphics :: Editors :: Vector-Based",
          "Topic :: Software Development :: Libraries :: Python Modules",
      ],
  )
  
subject: make cffsubr required and compreffor optional