specify indices

chriddyp · chriddyp · commit 99faf0c5fbbe · 2015-03-26T21:19:49.000-04:00
diff --git a/plotly/widgets/graph_widget.py b/plotly/widgets/graph_widget.py
@@ -671,7 +671,7 @@ def reorder_traces(self, current_indices, new_indices=None):
             message['newIndices'] = new_indices
         self._handle_outgoing_message(message)
 
-    def extend_traces(self, update, indices, max_points=None):
+    def extend_traces(self, update, indices=(0,), max_points=None):
         """ Append data points to existing traces in the Plotly graph.
 
         Args:
