old_contents: def run_tests(test_labels, verbosity=1, interactive=True, extra_tests=[]):
      import sys
      from pkg_resources import load_entry_point
      sys.argv[1:] = sys.argv[2:]
  
      # Remove stop word (--) from argument list again. This separates Django
      # command options from py.test ones.
      try:
          del sys.argv[sys.argv.index('--')]
      except ValueError:
          pass
  
      try:
          entry_point = load_entry_point('py>=1.0.0', 'console_scripts', 'py.test')
      except ImportError:
          entry_point = load_entry_point('pytest>=2.0', 'console_scripts', 'py.test')
  
      sys.exit(entry_point())
  
new_contents: class TestRunner(object):
      def __init__(self, verbosity=1, interactive=True, failfast=True, **kwargs):
          self.verbosity = verbosity
          self.interactive = interactive
          self.failfast = failfast
  
      def run_tests(self, test_labels):
          import pytest
          import sys
  
          if test_labels is None:
              print ('Not yet implemented: py.test is still not able to '
                     'discover the tests in all the INSTALLED_APPS as Django '
                     'requires.')
              exit(1)
  
          pytest_args = []
          if self.failfast:
              pytest_args.append('--exitfirst')
          if self.verbosity == 0:
              pytest_args.append('--quiet')
          elif self.verbosity > 1:
              pytest_args.append('--verbose')
  
          # Remove arguments before (--). This separates Django command options
          # from py.test ones.
          try:
              pytest_args_index = sys.argv.index('--') + 1
              pytest_args.extend(sys.argv[pytest_args_index:])
          except ValueError:
              pass
  
          sys.exit(pytest.main(pytest_args))
  
  
  # Keep the old name to be backwards-compatible
  def run_tests(test_labels, verbosity=1, interactive=True, extra_tests=[]):
      runner = TestRunner(verbosity, interactive, failfast=False)
      runner.run_tests(test_labels)
  
subject: Add a new TestRunner class to remove Django deprecation warnings