Python 如何解决'；听写器&x27；对象不可下标错误？

我正在尝试导入csv，然后使用f字符串将结果打印为句子

我的csv看起来像这样：

“月（购买日期）”，“每月总收入”
"1","264510"
"2","226199"
"3","247469"
"4","254352"
"5","281448"
"6","258480"
"7","260668"
"8","263922"
"9","127317"

我尝试使用的代码是：

import csv

with open('total_revenue.csv') as csvfile:
    MonthlyRevenue = csv.DictReader(csvfile, delimiter=",", quotechar = '"')
    
for row in MonthlyRevenue:
    print (f"For the month {MonthlyRevenue['MONTH(purchases.date)']} the total revenue was {MonthlyRevenue['total_revenue_per_month']}.")

---

当我运行代码时，我得到TypeError:“DictReader”对象是不可订阅的。这个错误意味着什么？如何解决此问题？

您需要从每个

行访问密钥，而不是从
DictReader
实例访问密钥

例如，使用

row['MONTH(purchases.date)']

而不是

MonthlyRevenue['MONTH(purchases.date)']

迭代对象
MonthlyRevenue
会将每一行作为
dict
提供给您。您可以根据需要访问该词典，如本例中所示