a dict / Series will be left as-is. Extra labels listed don't throw an error. Alternatively, change ``Series.name`` with a scalar value. See the :ref:`user guide ` for more. Parameters ---------- index : scalar, hashable sequence, dict-like or function optional Functions or dict-like are transformations to apply to the index. Scalar or hashable sequence-like will alter the ``Series.name`` attribute. axis : {0 or 'index'} Unused. Parameter needed for compatibility with DataFrame. copy : bool, default True Also copy underlying data. inplace : bool, default False Whether to return a new Series. If True the value of copy is ignored. level : int or level name, default None In case of MultiIndex, only rename labels in the specified level. errors : {'ignore', 'raise'}, default 'ignore' If 'raise', raise `KeyError` when a `dict-like mapper` or `index` contains labels that are not present in the index being transformed. If 'ignore', existing keys will be renamed and extra keys will be ignored. Returns ------- Series or None Series with index labels or name altered or None if ``inplace=True``. See Also -------- DataFrame.rename : Corresponding DataFrame method. Series.rename_axis : Set the name of the axis. Examples -------- >>> s = pd.Series([1, 2, 3]) >>> s 0 1 1 2 2 3 dtype: int64 >>> s.rename("my_name") # scalar, changes Series.name 0 1 1 2 2 3 Name: my_name, dtype: int64 >>> s.rename(lambda x: x ** 2) # function, changes labels 0 1 1 2 4 3 dtype: int64 >>> s.rename({1: 3, 2: 5}) # mapping, changes labels 0 1 3 2 5 3 dtype: int64 N)