sort several columns pandas code example

Example 1: sort by two columns in pandas

df.sort_values(['a', 'b'], ascending=[True, False])

Example 2: sort columns dataframe

df = df.reindex(sorted(df.columns), axis=1)

Example 3: how to sort dataframe multi columns with multi ascending values

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