pandas.DataFrame.sort_index

DataFrame.sort_index(axis=0, by=None, ascending=True, inplace=False)

Sort DataFrame either by labels (along either axis) or by the values in a column

axis : {0, 1}
Sort index/rows versus columns
by : object
Column name(s) in frame. Accepts a column name or a list or tuple for a nested sort.
ascending : boolean or list, default True
Sort ascending vs. descending. Specify list for multiple sort orders
inplace : boolean, default False
Sort the DataFrame without creating a new instance
>>> result = df.sort_index(by=['A', 'B'], ascending=[1, 0])

sorted : DataFrame