old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  
  import setuptools
  
  from setuptools.command.test import test as TestCommand  # NOQA
  import sys
  
  
  class Tox(TestCommand):
  
      user_options = [('tox-args=', 'a', "Arguments to pass to tox")]
  
      def initialize_options(self):
          TestCommand.initialize_options(self)
          self.tox_args = None
  
      def finalize_options(self):
          TestCommand.finalize_options(self)
          self.test_args = []
          self.test_suite = True
  
      def run_tests(self):
          import shlex
          import tox
  
          args = self.tox_args
          if args:
              args = shlex.split(self.tox_args)
          errno = tox.cmdline(args=args)
          sys.exit(errno)
  
  
  try:
      import multiprocessing
      assert multiprocessing
  except ImportError:
      pass
  
  
  setuptools.setup(
      setup_requires=["pbr>=1.8"],
      tests_require=["tox"],
      cmdclass={'test': Tox},
      pbr=True)
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  
  import setuptools
  
  from setuptools.command.test import test as TestCommand  # NOQA
  import sys
  
  try:
      import multiprocessing
      assert multiprocessing
  except ImportError:
      pass
  
  
  setuptools.setup(
      setup_requires=["pbr>=1.8"],
      pbr=True)
  
subject: Remove tox boilerplate