AttributeError：'_io.TextIourapper'對象沒有屬性'reader'

Question

無法得到代碼中的錯誤，因爲csv模塊的csv.reader()函數按照the documentation。但我仍然得到這個錯誤：

Traceback (most recent call last): 
    File "test_csv.py", line 4, in <module> 
    read = csv.reader(csv, delimiter = ',') 
AttributeError: '_io.TextIOWrapper' object has no attribute 'reader' 

我的代碼：

import csv 

with open('test_csv.csv') as csv: 
    read = csv.reader(csv, delimiter = ',') 
    for row in read: 
     print(row) 

Answer 1

在as目標您重新綁定的名稱csv：

with open('test_csv.csv') as csv: 

這掩蓋了模塊名稱，所以csv.reader在文件對象上解析爲。

使用不同的目標：

with open('test_csv.csv') as csvfile: 
    read = csv.reader(csvfile, delimiter = ',') 
    for row in read: 
     print(row)