pandas.DataFrame.rename

DataFrame.rename(index=None, columns=None, copy=True, inplace=False)

Alter index and / or columns using input function or functions. Function / dict values must be unique (1-to-1). Labels not contained in a dict / Series will be left as-is.

index : dict-like or function, optional
Transformation to apply to index values
columns : dict-like or function, optional
Transformation to apply to column values
copy : boolean, default True
Also copy underlying data
inplace : boolean, default False
Whether to return a new DataFrame. If True then value of copy is ignored.

Series.rename

renamed : DataFrame (new object)