comment tweaks and remove commented-out code

Author: alexcjohnson

packages/python/plotly/plotly/basedatatypes.py

@@ -1560,7 +1560,8 @@ def _add_annotation_like(
                     )
                 )
 
-            # If the new_object was created with an yref specified, the specified yref should be used otherwise assign the xref and yref from the layout_keys
+            # If new_obj was created with yref specified, the specified yref
+            # should be used, otherwise assign xref and yref from layout_keys
             if new_obj.yref == None or new_obj.yref == "y":
                 if len(refs) == 1 and secondary_y:
                     raise ValueError(
@@ -4062,12 +4063,10 @@ def _process_multiple_axis_spanning_shapes(
                 # however, in the case of a single plot, xref and yref MAY not be
                 # specified, IF they are not specified we specify them here so the following routines can work
                 # (they need to append " domain" to xref or yref). If they are specified, we leave them alone.
-                if self.layout[layout_obj][-1].xref == None:
+                if self.layout[layout_obj][-1].xref is None:
                     self.layout[layout_obj][-1].update(xref="x")
-                # self.layout[layout_obj][-1].update(xref="x")
-                if self.layout[layout_obj][-1].yref == None:
+                if self.layout[layout_obj][-1].yref is None:
                     self.layout[layout_obj][-1].update(yref="y")
-                # self.layout[layout_obj][-1].update(yref='y')
             new_layout_objs = tuple(
                 filter(
                     lambda x: x is not None,