错误“列表索引必须是整数或切片，而不是str".在循环时 [英] Error "list indices must be integers or slices, not str" while looping

问题描述

我正在尝试仅解析对电子邮件的答复，这些答复存储在CSV文件中.我正在使用此库，该库似乎适合于这样做.我的CSV列如下所示:

I'm trying to parse only the replies to my emails, which are stored in a CSV file. I am making use of this library which seems to be geared at doing that. My CSV columns look like this:

Date    From Name   From Address   To   Subject    Message

我想做的是阅读 message 列，执行清洁功能，即 EmailReplyParser.parse_reply(email_message)并将其替换为已清洁的电子邮件.

What I want to do is read the message column, perform the cleaning function which is EmailReplyParser.parse_reply(email_message) and replace it with the cleaned emails.

这就是我现在拥有的:

from email_reply_parser import EmailReplyParser
import csv

with open('D:/Harry_Potter.csv', encoding="utf8") as inf:
    reader = csv.reader(inf.readlines())

with open('D:/clean.csv', 'w') as outf:
    writer = csv.writer(outf)
    for row in reader:
        EmailReplyParser.parse_reply(row['Message'])
    writer.writerows(reader)

这是我遇到的错误: TypeError:列表索引必须是整数或切片，而不是str .

我该如何解决?

推荐答案

您的循环应如下所示:

with open('D:/clean.csv', 'w') as outf:
    writer = csv.writer(outf)
    # need to skip the title
    title = reader.__next__()
    for row in reader:
        EmailReplyParser.parse_reply(row[0].split()[-1])
    writer.writerows(reader)

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