Backport PR #60197 on branch 2.3.x (TYP/COMPAT: don't use Literal for Series.ndim to avoid tab completion bug in IPython) (#60200)

Backport PR #60197: TYP/COMPAT: don't use Literal for Series.ndim to avoid tab completion bug in IPython

Co-authored-by: Joris Van den Bossche <[email protected]>

Author: meeseeksmachine

pandas/core/base.py

@@ -361,8 +361,11 @@ def __len__(self) -> int:
         # We need this defined here for mypy
         raise AbstractMethodError(self)
 
+    # Temporarily avoid using `-> Literal[1]:` because of an IPython (jedi) bug
+    # https://github.com/ipython/ipython/issues/14412
+    # https://github.com/davidhalter/jedi/issues/1990
     @property
-    def ndim(self) -> Literal[1]:
+    def ndim(self) -> int:
         """
         Number of dimensions of the underlying data, by definition 1.