old_contents: import unittest
  import subprocess
  import random
  
  # copied from python 2.7 for python 2.6
  def check_output(*popenargs, **kwargs):
      if 'stdout' in kwargs:
          raise ValueError('stdout argument not allowed, it will be overridden.')
      process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs)
      output, unused_err = process.communicate()
      retcode = process.poll()
      if retcode:
          cmd = kwargs.get("args")
          if cmd is None:
              cmd = popenargs[0]
          raise subprocess.CalledProcessError(retcode, cmd, output=output)
      return output
  
  class DomainsTest(unittest.TestCase):
      def _cmd(self, cmd, *args):
          pargs = ('scripts/cli53', cmd) + args
          return check_output(pargs, stderr=subprocess.STDOUT)
          
      def _unique_name(self):
          return 'temp%d.com' % random.randint(0, sys.maxint)
          
      def test_usage(self):
          assert 'usage' in self._cmd('-h')        
  
      def test_create_delete(self):
          name = self._unique_name()
          self._cmd('create', name)
          assert name in self._cmd('list')
          self._cmd('delete', name)
          assert name not in self._cmd('list')
  
new_contents: import sys
  import unittest
  import subprocess
  import random
  
  # copied from python 2.7 for python 2.6
  def check_output(*popenargs, **kwargs):
      if 'stdout' in kwargs:
          raise ValueError('stdout argument not allowed, it will be overridden.')
      process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs)
      output, unused_err = process.communicate()
      retcode = process.poll()
      if retcode:
          cmd = kwargs.get("args")
          if cmd is None:
              cmd = popenargs[0]
          raise subprocess.CalledProcessError(retcode, cmd, output=output)
      return output
  
  class DomainsTest(unittest.TestCase):
      def _cmd(self, cmd, *args):
          pargs = ('scripts/cli53', cmd) + args
          return check_output(pargs, stderr=subprocess.STDOUT)
          
      def _unique_name(self):
          return 'temp%d.com' % random.randint(0, sys.maxint)
          
      def test_usage(self):
          assert 'usage' in self._cmd('-h')        
  
      def test_create_delete(self):
          name = self._unique_name()
          self._cmd('create', name)
          assert name in self._cmd('list')
          self._cmd('delete', name)
          assert name not in self._cmd('list')
  
subject: Fix last commit