电子邮件身体有时是一个字符串,有时候是列表。为什么? [英] Email body is a string sometimes and a list sometimes. Why?
问题描述
import email
message = email.message_from_string(original_mail_content)
message_body = message.get_payload()
这个message_body是有时返回一个列表[email.message.Message实例,email.message.Message实例],有时返回一个字符串(传入电子邮件的实际内容)。为什么。甚至我再发现一次观察。当我浏览email.message.Message.get_payload()docstring时,我发现这个.. _
有效负载将是一个列表对象或一个字符串。如果您将
变为列表对象,您可以修改消息的有效载荷.....
那么如何使用通用方法来获取通过python的邮件体?请帮助我。
嗯,答案是正确的,你应该阅读文档,但是一个通用的例子方式:
def get_first_text_part(msg):
maintype = msg.get_content_maintype()
如果maintype = ='multipart':
作为msg.get_payload()中的一部分:
如果part.get_content_maintype()=='text':
return part.get_payload()
elif maintype =='text':
return msg.get_payload()
这很容易出现灾难,因为可以想象,部件本身可能有多部分,它只返回第一个文本部分,所以这可能是错误的,但你可以玩它。
My application is written in python. What I am doing is I am running a script on each email received by postfix and do something with the email content. Procmail is responsible for running the script taking the email as input. The problem started when I was converting the input message(may be text) to email_message object(because the latter comes in handy). I am using email.message_from_string (where email is the default email module, comes with python).
import email
message = email.message_from_string(original_mail_content)
message_body = message.get_payload()
This message_body is sometimes returning a list[email.message.Message instance,email.message.Message instance] and sometime returning a string(actual body content of the incoming email). Why is it. And even I found one more observation. When I was browsing through the email.message.Message.get_payload() docstring, I found this..
"""
The payload will either be a list object or a string.If you mutate
the list object, you modify the message's payload in place....."""
So how do I have generic method to get the body of email through python? Please help me out.
Well, the answers are correct, you should read the docs, but for an example of a generic way:
def get_first_text_part(msg):
maintype = msg.get_content_maintype()
if maintype == 'multipart':
for part in msg.get_payload():
if part.get_content_maintype() == 'text':
return part.get_payload()
elif maintype == 'text':
return msg.get_payload()
This is prone to some disaster, as it is conceivable the parts themselves might have multiparts, and it really only returns the first text part, so this might be wrong too, but you can play with it.
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