update client.get_result to match AsyncResult behavior

IPython/parallel/client/client.py

@@ -1378,9 +1378,11 b' class Client(HasTraits):'
         block = self.block if block is None else block
         if indices_or_msg_ids is None:
             indices_or_msg_ids = -1
-
+        
+        single_result = False
         if not isinstance(indices_or_msg_ids, (list,tuple)):
             indices_or_msg_ids = [indices_or_msg_ids]
+            single_result = True
 
         theids = []
         for id in indices_or_msg_ids:
@@ -1392,6 +1394,11 b' class Client(HasTraits):'
 
         local_ids = filter(lambda msg_id: msg_id in self.outstanding or msg_id in self.results, theids)
         remote_ids = filter(lambda msg_id: msg_id not in local_ids, theids)
+        
+        # given single msg_id initially, get_result shot get the result itself,
+        # not a length-one list
+        if single_result:
+            theids = theids[0]
 
         if remote_ids:
             ar = AsyncHubResult(self, msg_ids=theids)

IPython/parallel/tests/test_client.py

@@ -152,10 +152,10 b' class TestClient(ClusterTestCase):'
         ar = c[t].apply_async(wait, 1)
         # give the monitor time to notice the message
         time.sleep(.25)
-        ahr = self.client.get_result(ar.msg_ids)
+        ahr = self.client.get_result(ar.msg_ids[0])
         self.assertTrue(isinstance(ahr, AsyncHubResult))
         self.assertEqual(ahr.get(), ar.get())
-        ar2 = self.client.get_result(ar.msg_ids)
+        ar2 = self.client.get_result(ar.msg_ids[0])
         self.assertFalse(isinstance(ar2, AsyncHubResult))
         c.close()
     
@@ -171,10 +171,11 b' class TestClient(ClusterTestCase):'
         ar = c[t].execute("import time; time.sleep(1)", silent=False)
         # give the monitor time to notice the message
         time.sleep(.25)
-        ahr = self.client.get_result(ar.msg_ids)
+        ahr = self.client.get_result(ar.msg_ids[0])
+        print ar.get(), ahr.get(), ar._single_result, ahr._single_result
         self.assertTrue(isinstance(ahr, AsyncHubResult))
         self.assertEqual(ahr.get().pyout, ar.get().pyout)
-        ar2 = self.client.get_result(ar.msg_ids)
+        ar2 = self.client.get_result(ar.msg_ids[0])
         self.assertFalse(isinstance(ar2, AsyncHubResult))
         c.close()
     

IPython/parallel/tests/test_view.py

@@ -156,10 +156,10 b' class TestView(ClusterTestCase, ParametricTestCase):'
         ar = v.apply_async(wait, 1)
         # give the monitor time to notice the message
         time.sleep(.25)
-        ahr = v2.get_result(ar.msg_ids)
+        ahr = v2.get_result(ar.msg_ids[0])
         self.assertTrue(isinstance(ahr, AsyncHubResult))
         self.assertEqual(ahr.get(), ar.get())
-        ar2 = v2.get_result(ar.msg_ids)
+        ar2 = v2.get_result(ar.msg_ids[0])
         self.assertFalse(isinstance(ar2, AsyncHubResult))
         c.spin()
         c.close()