old_contents: #!/usr/bin/env python
  # -*- coding: utf8 -*-
  #
  #    Copyright (c) 2011 Min Ragan-Kelley
  #
  #    This file is part of pyzmq.
  #
  #    pyzmq is free software; you can redistribute it and/or modify it under
  #    the terms of the Lesser GNU General Public License as published by
  #    the Free Software Foundation; either version 3 of the License, or
  #    (at your option) any later version.
  #
  #    pyzmq is distributed in the hope that it will be useful,
  #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  #    Lesser GNU General Public License for more details.
  #
  #    You should have received a copy of the Lesser GNU General Public License
  #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  #
  
  #-----------------------------------------------------------------------------
  # Imports
  #-----------------------------------------------------------------------------
  
  import sys
  import time
  
  from unittest import TestCase
  
  from zmq import Stopwatch, ZMQError
  
  if sys.version_info[0] >= 3:
      long = int
  
  class TestStopWatch(TestCase):
      
      def test_stop_long(self):
          """Ensure stop returns a long int."""
          watch = Stopwatch()
          watch.start()
          us = watch.stop()
          self.assertTrue(isinstance(us, long))
          
      def test_stop_microseconds(self):
          """Test that stop/sleep have right units."""
          watch = Stopwatch()
          watch.start()
          tic = time.time()
          watch.sleep(1)
          us = watch.stop()
          toc = time.time()
          self.assertAlmostEqual(us/1e6,(toc-tic),0)
      
      def test_double_stop(self):
          """Test error raised on multiple calls to stop."""
          watch = Stopwatch()
          watch.start()
          watch.stop()
          self.assertRaises(ZMQError, watch.stop)
          self.assertRaises(ZMQError, watch.stop)
      
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf8 -*-
  #
  #    Copyright (c) 2011 Min Ragan-Kelley
  #
  #    This file is part of pyzmq.
  #
  #    pyzmq is free software; you can redistribute it and/or modify it under
  #    the terms of the Lesser GNU General Public License as published by
  #    the Free Software Foundation; either version 3 of the License, or
  #    (at your option) any later version.
  #
  #    pyzmq is distributed in the hope that it will be useful,
  #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  #    Lesser GNU General Public License for more details.
  #
  #    You should have received a copy of the Lesser GNU General Public License
  #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  #
  
  #-----------------------------------------------------------------------------
  # Imports
  #-----------------------------------------------------------------------------
  
  import sys
  import time
  
  from unittest import TestCase
  
  from zmq import Stopwatch, ZMQError
  
  if sys.version_info[0] >= 3:
      long = int
  
  class TestStopWatch(TestCase):
      
      def test_stop_long(self):
          """Ensure stop returns a long int."""
          watch = Stopwatch()
          watch.start()
          us = watch.stop()
          self.assertTrue(isinstance(us, long))
          
      def test_stop_microseconds(self):
          """Test that stop/sleep have right units."""
          watch = Stopwatch()
          watch.start()
          tic = time.time()
          watch.sleep(1)
          us = watch.stop()
          toc = time.time()
          self.assertAlmostEqual(us/1e6,(toc-tic),places=0)
      
      def test_double_stop(self):
          """Test error raised on multiple calls to stop."""
          watch = Stopwatch()
          watch.start()
          watch.stop()
          self.assertRaises(ZMQError, watch.stop)
          self.assertRaises(ZMQError, watch.stop)
      
  
subject: set places by keyword for py3k