Pandas: how to sort dataframe by column AND by index

Question

Given the DataFrame:

import pandas as pd
df = pd.DataFrame([6, 4, 2, 4, 5], index=[2, 6, 3, 4, 5], columns=[\'A\'])

Results in:

<         


        

Answer 1

You can sort by index and then by column A using kind='mergesort'.

This works because mergesort is stable.

res = df.sort_index().sort_values('A', kind='mergesort')

Result:

   A
3  2
4  4
6  4
5  5
2  6