python pandas pivot on bin

1df['bin'] = pd.cut(df.age, [0,4,9,14])
2
3pvtdf = df.pivot_table(index='type', columns=['bin'], values='days', 
4                       aggfunc=('count', 'sum')).fillna(0)
5
6#       count                   sum               
7# bin  (0, 4] (4, 9] (9, 14] (0, 4] (4, 9] (9, 14]
8# type                                            
9# a       2.0    0.0     1.0    6.0    0.0     1.0
10# b       3.0    0.0     0.0    9.0    0.0     0.0
11# c       0.0    1.0     0.0    0.0    1.0     0.0
12# d       0.0    1.0     0.0    0.0    4.0     0.0
13# e       0.0    0.0     1.0    0.0    0.0     2.0
14# f       0.0    1.0     0.0    0.0    0.0     0.0
15