BF: history message had string keys, converted to create properly sorted history

IPython/frontend/qt/console/history_console_widget.py

@@ -128,7 +128,7 b' class HistoryConsoleWidget(ConsoleWidget):'
                 break
         else:
             history = None
-
+        
         if history is not None:
             self._history_index = index
             self.input_buffer = history

IPython/frontend/qt/console/ipython_widget.py

@@ -167,7 +167,10 b' class IPythonWidget(FrontendWidget):'
             the IPython kernel.
         """
         history_dict = msg['content']['history']
-        items = [ history_dict[key] for key in sorted(history_dict.keys()) ]
+        input_history_dict = {}
+        for key,val in history_dict.items():
+            input_history_dict[int(key)] = val
+        items = [ val for _, val in sorted(input_history_dict.items()) ]
         self._set_history(items)
 
     def _handle_pyout(self, msg):