pandas sort multiple columns ascending and descending code example

Example 1: sort dataframe by column

df.sort_values(by='col1', ascending=False)

Example 2: pandas sort values by multiple columns

df = df.sort_values(["b", "c"], ascending = (False, True))

Example 3: sort_values

>>> df.sort_values(by=['col1'])
    col1 col2 col3
0   A    2    0
1   A    1    1
2   B    9    9
5   C    4    3
4   D    7    2
3   NaN  8    4