DOC: fix EX03 errors in docstrings

Author: tqa236

ci/code_checks.sh

@@ -105,8 +105,7 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         pandas.Index.rename \
         pandas.Index.droplevel \
         pandas.Index.isin \
-        pandas.MultiIndex.names \
-        pandas.MultiIndex.droplevel \
+        pandas.CategoricalIndex.set_categories \
         pandas.IndexSlice \
         pandas.Grouper \
         pandas.io.formats.style.Styler.map \

pandas/core/indexes/base.py

@@ -2124,7 +2124,8 @@ def droplevel(self, level: IndexLabel = 0):
         Examples
         --------
         >>> mi = pd.MultiIndex.from_arrays(
-        ... [[1, 2], [3, 4], [5, 6]], names=['x', 'y', 'z'])
+        ...     [[1, 2], [3, 4], [5, 6]], names=['x', 'y', 'z']
+        ... )
         >>> mi
         MultiIndex([(1, 3, 5),
                     (2, 4, 6)],

pandas/core/indexes/multi.py

@@ -1638,7 +1638,8 @@ def _set_names(self, names, *, level=None, validate: bool = True) -> None:
         Examples
         --------
         >>> mi = pd.MultiIndex.from_arrays(
-        ... [[1, 2], [3, 4], [5, 6]], names=['x', 'y', 'z'])
+        ...     [[1, 2], [3, 4], [5, 6]], names=['x', 'y', 'z']
+        ... )
         >>> mi
         MultiIndex([(1, 3, 5),
                     (2, 4, 6)],