How to reset a DataFrame's indexes for all groups in one step?

Question

I\'ve tried to split my dataframe to groups

df = pd.DataFrame({\'A\' : [\'foo\', \'bar\', \'foo\', \'bar\',
                       \'foo\', \'bar\', \'foo\',         


        

Answer 1

df=df.groupby('A').apply(lambda x: x.reset_index(drop=True)).drop('A',axis=1).reset_index()