pandas csv入力 ピボット集計

import pandas as pd
import os
import numpy as np
path=os.getcwd()
print(path)

def2=pd.read_csv('c:\python\sample2.csv')
print(def2)
table=pd.pivot_table(def2,values='price',
                     index=['date'], columns=['item'],aggfunc=np.sum)

print()
print("ピボット集計　結果")
print(table)  

==== RESTART: C:/Users/ooshi/AppData/Local/Programs/Python/Python39/pandasCloss.py ====
C:\Users\ooshi\AppData\Local\Programs\Python\Python39
         date    item  price
0  2015-01-01   apple    300
1  2015-01-01   apple    300
2  2015-01-01  orange    250
3  2015-01-02  orange    240
4  2015-01-02  orange    240
5  2015-01-02  banana    260

ピボット集計　結果
item        apple  banana  orange
date                             
2015-01-01  600.0     NaN   250.0
2015-01-02    NaN   260.0   480.0
>>>