suggested changes

Author: topper-123

pandas/core/frame.py

@@ -8569,20 +8569,21 @@ def isin(self, values) -> "DataFrame":
 
     # ----------------------------------------------------------------------
     # Add index and columns
-    index: "Index" = properties.AxisProperty(
-        axis=1, doc="The index (row labels) of the DataFrame."
-    )
-    columns: "Index" = properties.AxisProperty(
-        axis=0, doc="The column labels of the DataFrame."
-    )
     _AXIS_ORDERS = ["index", "columns"]
     _AXIS_NUMBERS = {"index": 0, "columns": 1}
     _AXIS_NAMES = {0: "index", 1: "columns"}
     _AXIS_REVERSED = True
     _info_axis_number = 1
-    _info_axis_name = _AXIS_ORDERS[_info_axis_number]
+    _info_axis_name = "columns"
     _AXIS_LEN = len(_AXIS_ORDERS)
 
+    index: "Index" = properties.AxisProperty(
+        axis=1, doc="The index (row labels) of the DataFrame."
+    )
+    columns: "Index" = properties.AxisProperty(
+        axis=0, doc="The column labels of the DataFrame."
+    )
+
     # ----------------------------------------------------------------------
     # Add plotting methods to DataFrame
     plot = CachedAccessor("plot", pandas.plotting.PlotAccessor)

pandas/core/series.py

@@ -4562,17 +4562,18 @@ def to_period(self, freq=None, copy=True) -> "Series":
 
     # ----------------------------------------------------------------------
     # Add index
-    index: "Index" = properties.AxisProperty(
-        axis=0, doc="The index (axis labels) of the Series."
-    )
+    _info_axis_number = 0
+    _info_axis_name = "index"
     _AXIS_ORDERS = ["index"]
     _AXIS_NUMBERS = {"index": 0}
     _AXIS_NAMES = {0: "index"}
     _AXIS_REVERSED = False
-    _info_axis_number = 0
-    _info_axis_name = _AXIS_ORDERS[_info_axis_number]
     _AXIS_LEN = len(_AXIS_ORDERS)
 
+    index: "Index" = properties.AxisProperty(
+        axis=0, doc="The index (axis labels) of the Series."
+    )
+
     # ----------------------------------------------------------------------
     # Accessor Methods
     # ----------------------------------------------------------------------