How to sort pandas data frame using values from several columns?

Question

I have the following data frame:

df = pandas.DataFrame([{\'c1\':3,\'c2\':10},{\'c1\':2, \'c2\':30},{\'c1\':1,\'c2\':20},{\'c1\':2,\'c2\':15},{\'c1\':2,\'c2\'         


        

Answer 1

The dataframe.sort() method is - so my understanding - deprecated in pandas > 0.18. In order to solve your problem you should use dataframe.sort_values() instead:

f.sort_values(by=["c1","c2"], ascending=[False, True])

The output looks like this:

    c1  c2
    3   10
    2   15
    2   30
    2   100
    1   20