plotly
diff --git a/‎plotly/graph_objs/graph_objs.py
Copy file name to clipboardExpand all lines: plotly/graph_objs/graph_objs.py
+2-2Lines changed: 2 additions & 2 deletions b/‎plotly/graph_objs/graph_objs.py
Copy file name to clipboardExpand all lines: plotly/graph_objs/graph_objs.py
+2-2Lines changed: 2 additions & 2 deletions
@@ -700,13 +700,13 @@ def to_string(self, level=0, indent=4, eol='\n',
                 eol=eol,
                 indent=' ' * indent * (level+1),
                 key=key)
-            try:
+            if isinstance(self[key], PlotlyBase):
                 string += self[key].to_string(level=level+1,
                                               indent=indent,
                                               eol=eol,
                                               pretty=pretty,
                                               max_chars=max_chars)
-            except AttributeError:
+            else:
                 if pretty:  # curtail representation if too many chars
                     max_len = (max_chars -
                                indent*(level + 1) -