old_contents: #!/usr/bin/env python
  
  import os
  from setuptools import setup
  import versioneer
  
  requires = open("requirements.txt").read().strip().split("\n")
  install_requires = []
  extras_require = {}
  for r in requires:
      if ";" in r:
          # requirements.txt conditional dependencies need to be reformatted for wheels
          # to the form: `'[extra_name]:condition' : ['requirements']`
          req, cond = r.split(";", 1)
          cond = ":" + cond
          cond_reqs = extras_require.setdefault(cond, [])
          cond_reqs.append(req)
      else:
          install_requires.append(r)
  
  setup(
      name="distributed",
      version=versioneer.get_version(),
      cmdclass=versioneer.get_cmdclass(),
      description="Distributed scheduler for Dask",
      url="https://distributed.dask.org",
      maintainer="Matthew Rocklin",
      maintainer_email="mrocklin@gmail.com",
      python_requires=">=3.5",
      license="BSD",
      package_data={
          "": ["templates/index.html", "template.html"],
          "distributed": ["dashboard/templates/*.html"],
      },
      include_package_data=True,
      install_requires=install_requires,
      extras_require=extras_require,
      packages=[
          "distributed",
          "distributed.dashboard",
          "distributed.cli",
          "distributed.comm",
          "distributed.deploy",
          "distributed.diagnostics",
          "distributed.protocol",
      ],
      long_description=(
          open("README.rst").read() if os.path.exists("README.rst") else ""
      ),
      classifiers=[
          "Development Status :: 5 - Production/Stable",
          "Intended Audience :: Developers",
          "Intended Audience :: Science/Research",
          "License :: OSI Approved :: BSD License",
          "Operating System :: OS Independent",
          "Programming Language :: Python",
          "Programming Language :: Python :: 3.5",
          "Programming Language :: Python :: 3.6",
          "Programming Language :: Python :: 3.7",
          "Topic :: Scientific/Engineering",
          "Topic :: System :: Distributed Computing",
      ],
      entry_points="""
          [console_scripts]
          dask-ssh=distributed.cli.dask_ssh:go
          dask-submit=distributed.cli.dask_submit:go
          dask-remote=distributed.cli.dask_remote:go
          dask-scheduler=distributed.cli.dask_scheduler:go
          dask-worker=distributed.cli.dask_worker:go
        """,
      zip_safe=False,
  )
  
new_contents: #!/usr/bin/env python
  
  import os
  from setuptools import setup, find_packages
  import versioneer
  
  requires = open("requirements.txt").read().strip().split("\n")
  install_requires = []
  extras_require = {}
  for r in requires:
      if ";" in r:
          # requirements.txt conditional dependencies need to be reformatted for wheels
          # to the form: `'[extra_name]:condition' : ['requirements']`
          req, cond = r.split(";", 1)
          cond = ":" + cond
          cond_reqs = extras_require.setdefault(cond, [])
          cond_reqs.append(req)
      else:
          install_requires.append(r)
  
  setup(
      name="distributed",
      version=versioneer.get_version(),
      cmdclass=versioneer.get_cmdclass(),
      description="Distributed scheduler for Dask",
      url="https://distributed.dask.org",
      maintainer="Matthew Rocklin",
      maintainer_email="mrocklin@gmail.com",
      python_requires=">=3.5",
      license="BSD",
      package_data={
          "": ["templates/index.html", "template.html"],
          "distributed": ["dashboard/templates/*.html"],
      },
      include_package_data=True,
      install_requires=install_requires,
      extras_require=extras_require,
      packages=find_packages(exclude=["*tests*"]),
      long_description=(
          open("README.rst").read() if os.path.exists("README.rst") else ""
      ),
      classifiers=[
          "Development Status :: 5 - Production/Stable",
          "Intended Audience :: Developers",
          "Intended Audience :: Science/Research",
          "License :: OSI Approved :: BSD License",
          "Operating System :: OS Independent",
          "Programming Language :: Python",
          "Programming Language :: Python :: 3.5",
          "Programming Language :: Python :: 3.6",
          "Programming Language :: Python :: 3.7",
          "Topic :: Scientific/Engineering",
          "Topic :: System :: Distributed Computing",
      ],
      entry_points="""
          [console_scripts]
          dask-ssh=distributed.cli.dask_ssh:go
          dask-submit=distributed.cli.dask_submit:go
          dask-remote=distributed.cli.dask_remote:go
          dask-scheduler=distributed.cli.dask_scheduler:go
          dask-worker=distributed.cli.dask_worker:go
        """,
      zip_safe=False,
  )
  
subject: Use setuptools.find_packages in setup.py (#3150)