Add what's new entry and fix linting

ericpre · ericpre · commit 7c4712823bac · 2021-12-04T19:00:01.000Z
diff --git a/doc/users/next_whats_new/selector_improvement.rst b/doc/users/next_whats_new/selector_improvement.rst
@@ -0,0 +1,8 @@
+Selectors improvement
+---------------------
+
+The `~matplotlib.widgets.RectangleSelector` and
+`~matplotlib.widgets.EllipseSelector` can now be rotated interactively. The rotation is
+enabled and disabled by pressing the 'r' key.
+The "square" shape can be defined in data or display coordinate system as defined
+by the *data_coordinates* modifier.
diff --git a/lib/matplotlib/widgets.py b/lib/matplotlib/widgets.py
@@ -2103,6 +2103,7 @@ def add_default_state(self, value):
                              f'following: {keys}.')
         self._default_state.add(value)
 
+
 class SpanSelector(_SelectorWidget):
     """
     Visually select a min/max range on a single axis and call a function with
