update describe.py

Author: khemkaran10

pandas/core/methods/describe.py

@@ -173,7 +173,8 @@ def describe(self, percentiles: Sequence[float] | np.ndarray) -> DataFrame:
 
         col_names = reorder_columns(ldesc)
         if len(ldesc) == 0:
-                raise ValueError("None of the included dtypes are present in the DataFrame") 
+                msg = "None of the included dtypes are present in the DataFrame"
+                raise ValueError(msg) 
         d = concat(
             [x.reindex(col_names) for x in ldesc],
             axis=1,