python - 电子邮件正文？

Question

大家好，我正在使用一个脚本，其中涉及:

import oauth2 as oauth
import oauth2.clients.imap as imaplib
import email
conn = imaplib.IMAP4_SSL('imap.googlemail.com')
conn.debug = 4 

# This is the only thing in the API for impaplib.IMAP4_SSL that has 
# changed. You now authenticate with the URL, consumer, and token.
conn.authenticate(url, consumer, token)

# Once authenticated everything from the impalib.IMAP4_SSL class will 
# work as per usual without any modification to your code.
conn.select('[Gmail]/All Mail')

response, item_ids = conn.search(None, "SINCE", "01-Jan-2011")
item_ids = item_ids[0].split()

# Now iterate through this shit and retrieve all the email while parsing
# and storing into your whatever db.

for emailid in item_ids:
    resp, data = conn.fetch(emailid, "(RFC822)") 
    email_body = data[0][1] 
    mail = email.message_from_string(email_body) 

我当前的问题是我似乎无法检索 mail 实例的正文。我可以通过打印或 mail.as_string() 来查看电子邮件的内容，但即使使用 mail.keys() 和 mail.values() 我实际上也无法看到邮件的内容(主要消息)。

这个电子邮件库 API 有什么问题？ (或者更确切地说我做错了什么)？

Answer 1

来自email docs :

You can pass the parser a string or a file object, and the parser will return to you the root Message instance of the object structure.

For simple, non-MIME messages the payload of this root object will likely be a string containing the text of the message. For MIME messages, the root object will return True from its is_multipart() method, and the subparts can be accessed via the get_payload() and walk() methods.

因此，请使用 get_payload() 或者如果消息是多部分的，则调用 walk() 方法，然后在所需的位置上使用 get_payload()子部分。