Apply suggestions from code review

Author: alexcjohnson

Diff for: CHANGELOG.md

@@ -6,8 +6,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
   - Fixed another compatibility issue with Pandas 2.0, just affecting `px.*(line_close=True)` [[#4190](https://github.com/plotly/plotly.py/pull/4190)]
-
-  - Added some rounding to the `make_subplots` function to handle situations where the user-input specs cause the domain to exceed 1 by small amounts https://github.com/plotly/plotly.py/pull/4153
+  - Added some rounding to the `make_subplots` function to handle situations where the user-input specs cause the domain to exceed 1 by small amounts [[#4153](https://github.com/plotly/plotly.py/pull/4153)]
   - Sanitize JSON output to prevent an XSS vector when graphs are inserted directly into HTML [[#4196](https://github.com/plotly/plotly.py/pull/4196)]
   - Fixed issue with shapes and annotations plotting on the wrong y axis when supplied with a specific axis in the `yref` parameter [[#4177](https://github.com/plotly/plotly.py/pull/4177)]
 

Diff for: packages/python/plotly/plotly/basedatatypes.py

@@ -1562,7 +1562,7 @@ def _add_annotation_like(
 
             # If the new_object was created with a yref specified that did not include paper or domain, the specified yref should be used otherwise assign the xref and yref from the layout_keys
             if (
-                new_obj.yref == None
+                new_obj.yref is None
                 or new_obj.yref == "y"
                 or "paper" in new_obj.yref
                 or "domain" in new_obj.yref
@@ -4053,7 +4053,7 @@ def _process_multiple_axis_spanning_shapes(
                 row=row,
                 col=col,
                 exclude_empty_subplots=exclude_empty_subplots,
-                yref=shape_kwargs["yref"] if "yref" in shape_kwargs.keys() else "y",
+                yref=shape_kwargs.get("yref", "y"),
             )
         # update xref and yref for the new shapes and annotations
         for layout_obj, n_layout_objs_before in zip(