--- /usr/lib/python2.6/doctest.py	2009-12-07 21:30:15.000000000 +0200
+++ /home/noam/lib/python/doctest.py	2010-03-03 10:05:05.000000000 +0200
@@ -1325,6 +1325,11 @@
         else:
             return self.save_linecache_getlines(filename, module_globals)
 
+    def _displayhook(self, obj):
+        if obj is not None:
+            sys.stdout.write(repr(obj))
+            sys.stdout.write('\n')
+    
     def run(self, test, compileflags=None, out=None, clear_globs=True):
         """
         Run the examples in `test`, and display the results using the
@@ -1370,12 +1375,17 @@
         self.save_linecache_getlines = linecache.getlines
         linecache.getlines = self.__patched_linecache_getlines
 
+        # Make sure sys.displayhook just prints the value to stdout
+        save_displayhook = sys.displayhook
+        sys.displayhook = self._displayhook
+        
         try:
             return self.__run(test, compileflags, out)
         finally:
             sys.stdout = save_stdout
             pdb.set_trace = save_set_trace
             linecache.getlines = self.save_linecache_getlines
+            sys.displayhook = save_displayhook
             if clear_globs:
                 test.globs.clear()