_csv.Error:迭代器应返回字符串，而不是字节(您是否以文本模式打开文件?) [英] _csv.Error: iterator should return strings, not bytes (did you open the file in text mode?)

问题描述

在我的csv程序开始时:

At the start of my csv program:

import csv     # imports the csv module
import sys      # imports the sys module

f = open('Address Book.csv', 'rb') # opens the csv file
try:
    reader = csv.reader(f)  # creates the reader object
    for row in reader:   # iterates the rows of the file in orders
        print (row)    # prints each row
finally:
    f.close()      # closing

错误是:

    for row in reader:   # iterates the rows of the file in orders
_csv.Error: iterator should return strings, not bytes (did you open the file in text mode?)

推荐答案

代替此(和其余):

f = open('Address Book.csv', 'rb')

执行此操作:

with open('Address Book.csv', 'r') as f:
    reader = csv.reader(f) 
    for row in reader:
        print(row)  

上下文管理器意味着您不需要finally: f.close()，因为它会在发生错误或退出上下文时自动关闭文件.

The context manager means you don't need the finally: f.close(), because it will automatically close the file on an error, or on exiting the context.

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