old_contents: import sys
  import unittest
  
  from datetime import datetime
  
  from rdflib.term import URIRef
  from rdflib.term import Literal
  
  
  class TestRelativeBase(unittest.TestCase):
      def setUp(self):
          self.x = Literal("2008-12-01T18:02:00Z",
                           datatype=URIRef('http://www.w3.org/2001/XMLSchema#dateTime'))
  
      def test_equality(self):        
          self.assertEquals(self.x == self.x, True)
  
      def test_millis(self):
          now = datetime.now()
          l = Literal(now)
          self.assertEquals(l.datatype,
                  URIRef('http://www.w3.org/2001/XMLSchema#dateTime'))
          # 2.6.0 added the %f format to datetime.strftime
          # http://bugs.python.org/issue1982
          if sys.version_info >= (2,6,0):
              self.assertEqual(now, l.toPython())
  
  
  if __name__ == "__main__":
      unittest.main()
  
  
new_contents: import sys
  import unittest
  
  from datetime import datetime
  
  from rdflib.term import URIRef
  from rdflib.term import Literal
  from rdflib.namespace import _XSD_NS as XSD
  
  
  class TestRelativeBase(unittest.TestCase):
      def setUp(self):
          self.x = Literal("2008-12-01T18:02:00Z",
                           datatype=URIRef('http://www.w3.org/2001/XMLSchema#dateTime'))
  
      def test_equality(self):        
          self.assertEquals(self.x == self.x, True)
  
      def test_microseconds(self):
          dt1 = datetime(2009, 6, 15, 23, 37, 6, 522630)
          l = Literal(dt1)
  
          # datetime with microseconds should be cast as a literal with using
          # XML Schema dateTime as the literal datatype
          self.assertEquals(l.title(), '2009-06-15T23:37:06.522630')
          self.assertEquals(l.datatype, XSD.dateTime)
  
          # 2.6.0 added the %f format to datetime.strftime, so we should have
          # a lossless conversion back to the datetime
          # http://bugs.python.org/issue1982
          if sys.version_info >= (2,6,0):
              dt2 = l.toPython()
              self.assertEqual(dt2, dt1)
  
          # otherwise, we just get back the same literal again
          else:
              dt2 = l.toPython()
              l2 = Literal('2009-06-15T23:37:06.522630', datatype=XSD.dateTime)
              self.assertTrue(l2, l.toPython())
  
  
  if __name__ == "__main__":
      unittest.main()
  
  
subject: Update issue 46 Improved testing of what happens to datetime's with microseconds when Python version < 2.6.0