pandas can't sort a groupby column code example

Example 1: pandas sort values group by

df.groupby(['job']).apply(lambda x: (x.groupby('source')
                                      .sum()
                                      .sort_values('count', ascending=False))
                                     .head(3))

Example 2: Group based sort pandas

df_scored.sort_values('Score', ascending= False).sort_index(level='Index1', sort_remaining=False)