python email.message_from_string（）解析问题 [英] python email.message_from_string() parse problems

问题描述

我的设置使用fetchmail从Gmail中提取邮件，这些邮件由procmail处理并传递给python脚本。

My setup uses fetchmail to pull emails from Gmail, which are processed by procmail and passes it to a python script.

当我使用 email.message_from_string（），生成的对象不会被解析为电子邮件对象。 get_payload（）将邮件的标题/正文/有效载荷文本作为单个文本blob返回。

When I use email.message_from_string(), the resulting object is not parsed as an email object. get_payload() returns the header/body/payload text of the email as a single text blob.

它返回的文本：

From [e-mail]  Sat Aug 17 19:20:44 2013
>From example  Sat Aug 17 19:20:44 2013
MIME-Version: 1.0
Received: from ie-in-f109.1e100.net [74.125.142.109]
    by VirtualBox with IMAP (fetchmail-6.3.21)
    for <example@localhost> (single-drop); Sat, 17 Aug 2013 19:20:44 -0700 (PDT)
Received: by 10.70.131.110 with HTTP; Sat, 17 Aug 2013 19:20:42 -0700 (PDT)
Date: Sat, 17 Aug 2013 19:20:42 -0700
Delivered-To: [e-mail]
Message-ID: <[e-mail]>
Subject: test 19:20
From: example <[e-mail]>
To: example <[e-mail]>
Content-Type: multipart/alternative; boundary=001a1133435474449004e42f7861

--001a1133435474449004e42f7861
Content-Type: text/plain; charset=ISO-8859-1

19:20

--001a1133435474449004e42f7861
Content-Type: text/html; charset=ISO-8859-1

<div dir="ltr">19:20</div>

--001a1133435474449004e42f7861--

我的代码：

full_msg = sys.stdin.read()
msg = email.message_from_string(full_msg)
msg['to']          # returns None
msg.get_payload()  # returns the text above

我缺少什么让Python正确解释电子邮件？

What am I missing to get Python to properly interpret the email?

我从这些 问题我可能没有得到正确的电子邮件标题在某个地方，但我无法确认。第2行的>不是一个打字错误：它在文本中。

I see from these questions that I may not be getting the proper email headers somewhere along the line, but I cannot confirm. That ">" on line 2 is not a typo: it's in the text.

推荐答案

无论正如你所说，无论如何 - 这是错误的。删除此字符后：

Regardless of ">" being "in the text" as you say, whatever that means - it's wrong. After removing this character:

> python test.py< input.txt

example< [e-mail]>

[< email。 message.Message实例在0x02810288>，
< email.message.Message实例在0x02810058>]

所以错误不是在解析邮件，而是在>字符中以某种方式破坏您的电子邮件文本。

So the error is not in parsing the message, but in the ">" character somehow corrupting your email text.

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