如何从电子邮件中获取 csv 附件并保存答案

【问题标题】：How to get csv attachment from email and save it如何从电子邮件中获取 csv 附件并保存
【发布时间】：2013-09-01 02:05:33
【问题描述】：

我正在尝试从电子邮件中获取附件并将其保存到具有原始文件名的特定文件夹中。电子邮件非常基本，除了附件之外没有太多内容。该文件是一个 csv 文件，每封电子邮件只有一个。这是我到目前为止所拥有的，但我是新手，不知道如何继续。如果有帮助，这是使用 Outlook。任何帮助表示赞赏。

import imaplib
import email


mail=imaplib.IMAP4('mailserver.com')
mail.login("username", "password")
mail.select("DetReport")

typ, msgs = mail.uid('Search', None, '(SUBJECT "Detection")')
msgs = msgs[0].split()

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


    message=m.get_content_maintype()

仅供参考，当我运行 message=m.get_content_maintype() 时，它说它是文本。

【问题讨论】：

标签： python csv python-2.7 email-attachments imaplib

【解决方案1】：

我又环顾四周，又尝试了一些东西。这些： Downloading multiple attachments using imaplib 和How do I download only unread attachments from a specific gmail label? 玩了一下就得到了答案。

有效的代码：

import imaplib
import email
import os

svdir = 'c:/downloads'


mail=imaplib.IMAP4('mailserver')
mail.login("username","password")
mail.select("DetReport")

typ, msgs = mail.search(None, '(SUBJECT "Detection")')
msgs = msgs[0].split()

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


    if m.get_content_maintype() != 'multipart':
    continue

    for part in m.walk():
        if part.get_content_maintype() == 'multipart':
            continue
        if part.get('Content-Disposition') is None:
            continue

        filename=part.get_filename()
        if filename is not None:
            sv_path = os.path.join(svdir, filename)
            if not os.path.isfile(sv_path):
                print sv_path       
                fp = open(sv_path, 'wb')
                fp.write(part.get_payload(decode=True))
                fp.close()

POP3：

import poplib
import email

server = poplib.POP3(pop_server)
server.user(user)
server.pass_(pass)

# get amount of new mails and get the emails for them
messages = [server.retr(n+1) for n in range(len(server.list()[1]))]

# for every message get the second item (the message itself) and convert it to a string with \n; then create python email with the strings
emails = [email.message_from_string('\n'.join(message[1])) for message in messages]

for mail in emails:
    # check for attachment;
    for part in mail.walk():
        if not mail.is_multipart():
            continue
        if mail.get('Content-Disposition'):
            continue
        file_name = part.get_filename()
        # check if email park has filename --> attachment part
        if file_name:
            file = open(file_name,'w+')
            file.write(part.get_payload(decode=True))
            file.close()

【讨论】：