ABCExtensionArray set formatting

Laurent Mutricy · Laurent Mutricy · commit cfaea959ef00 · 2024-07-06T13:36:26.000+02:00
diff --git a/pandas/core/dtypes/generic.py b/pandas/core/dtypes/generic.py
@@ -139,13 +139,7 @@ def _subclasscheck(cls, inst) -> bool:
         "ABCExtensionArray",
         "_typ",
         # Note: IntervalArray and SparseArray are included bc they have _typ="extension"
-        {
-            "extension",
-            "categorical",
-            "periodarray",
-            "datetimearray",
-            "timedeltaarray",
-        },
+        {"extension", "categorical", "periodarray", "datetimearray", "timedeltaarray"},
     ),
 )
 ABCNumpyExtensionArray = cast(
