ENH: EA._get_repr_footer

pandas/core/arrays/base.py

@@ -1663,7 +1663,14 @@ def __repr__(self) -> str:
             self, self._formatter(), indent_for_name=False
         ).rstrip(", \n")
         class_name = f"<{type(self).__name__}>\n"
-        return f"{class_name}{data}\nLength: {len(self)}, dtype: {self.dtype}"
+        footer = self._get_repr_footer()
+        return f"{class_name}{data}\n{footer}"
+
+    def _get_repr_footer(self) -> str:
+        # GH#24278
+        if self.ndim > 1:
+            return f"Shape: {self.shape}, dtype: {self.dtype}"
+        return f"Length: {len(self)}, dtype: {self.dtype}"
 
     def _repr_2d(self) -> str:
         from pandas.io.formats.printing import format_object_summary
@@ -1679,7 +1686,8 @@ def _repr_2d(self) -> str:
         ]
         data = ",\n".join(lines)
         class_name = f"<{type(self).__name__}>"
-        return f"{class_name}\n[\n{data}\n]\nShape: {self.shape}, dtype: {self.dtype}"
+        footer = self._get_repr_footer()
+        return f"{class_name}\n[\n{data}\n]\n{footer}"
 
     def _formatter(self, boxed: bool = False) -> Callable[[Any], str | None]:
         """

pandas/core/arrays/categorical.py

@@ -2177,7 +2177,7 @@ def _repr_categories(self) -> list[str]:
         category_strs = [x.strip() for x in category_strs]
         return category_strs
 
-    def _repr_categories_info(self) -> str:
+    def _get_repr_footer(self) -> str:
         """
         Returns a string representation of the footer.
         """
@@ -2229,7 +2229,7 @@ def __repr__(self) -> str:
         """
         String representation.
         """
-        footer = self._repr_categories_info()
+        footer = self._get_repr_footer()
         length = len(self)
         max_len = 10
         if length > max_len:

pandas/io/formats/format.py

@@ -259,11 +259,12 @@ def _get_footer(self) -> str:
         name = self.series.name
         footer = ""
 
-        if getattr(self.series.index, "freq", None) is not None:
-            assert isinstance(
-                self.series.index, (DatetimeIndex, PeriodIndex, TimedeltaIndex)
-            )
-            footer += f"Freq: {self.series.index.freqstr}"
+        index = self.series.index
+        if (
+            isinstance(index, (DatetimeIndex, PeriodIndex, TimedeltaIndex))
+            and index.freq is not None
+        ):
+            footer += f"Freq: {index.freqstr}"
 
         if self.name is not False and name is not None:
             if footer:
@@ -289,7 +290,7 @@ def _get_footer(self) -> str:
         # level infos are added to the end and in a new line, like it is done
         # for Categoricals
         if isinstance(self.tr_series.dtype, CategoricalDtype):
-            level_info = self.tr_series._values._repr_categories_info()
+            level_info = self.tr_series._values._get_repr_footer()
             if footer:
                 footer += "\n"
             footer += level_info