pythonsortingpandas

python, sort descending dataframe with pandas

I'm trying to sort a dataframe by descending. I put 'False' in the ascending argument, but my order is still ascending.

My code is:

from pandas import DataFrame
import pandas as pd

d = {'one':[2,3,1,4,5],
     'two':[5,4,3,2,1],
     'letter':['a','a','b','b','c']}

df = DataFrame(d)

test = df.sort(['one'], ascending=[False])

but the output is

  letter  one  two
2      b    1    3
0      a    2    5
1      a    3    4
3      b    4    2
4      c    5    1
Solution

  • Edit: This is out of date, see @Merlin's answer.

    [False], being a nonempty list, is not the same as False. You should write:

    test = df.sort('one', ascending=False)