changelog for use_2to3, and fix setup.cfg as also mentioned in issue #4193

Author: alexcjohnson

CHANGELOG.md

@@ -8,6 +8,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
   - 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 [[#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)]
+  - Remove `use_2to3` setuptools arg, which is invalid in the latest Python and setuptools versions [[#4206](https://github.com/plotly/plotly.py/pull/4206)]
 
 ## [5.14.1] - 2023-04-05
 

packages/python/plotly/setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 description_file = README.md
-license_file = LICENSE.txt
+license_files = LICENSE.txt
 
 [bdist_wheel]
 universal=1