将文件（如对象）附加到电子邮件 python 3

我在网上找到了很多有关如何将本地文件附加到电子邮件的示例。我想做的是将一个类似对象的文件附加到电子邮件中。你为什么问？所以我不必处理清理文件的问题。下面是我的代码和我的错误。经过多次谷歌搜索后，我仍然没有设法让它工作，任何帮助将不胜感激:)

def email_sup_teams(team_name, contact_list, file_attachemnt):
    message_list = []
    for jobs in file_attachemnt:
        for k, v in jobs.items():
            message_list.append(v + ',')
    attachment_text = "\n".join(message_list)
    print(type(attachment_text))

    msg = MIMEText(' Failed jobs list. Please see attachment')
    msg['Subject'] = 'Not run Jobs for ' + team_name
    msg['From'] = '[email protected]'
    msg['To'] = '[email protected]'

    f = io.StringIO(attachment_text)
    attachment = MIMEText(f.read())
    attachment.add_header('Content-Disposition', 'attachment', filename='test_attach')           
    msg.attach(attachment)

    s = smtplib.SMTP('smlsmtp')
    s.sendmail(msg['From'], msg['To'], msg.as_string())
    s.quit()
    print('\n' + team_name + ' Email Sent')

error:

<class 'str'>
Traceback (most recent call last):
  File "queue_cleaner_main.py", line 85, in <module>
    sys.exit(main())
  File "queue_cleaner_main.py", line 82, in main
    queue_cleaner_functions.email_sup_teams(t, team_members_emails, attachment_file_of_jobs)
  File "D:\oppssup\old_job\queue_cleaner_functions.py", line 179, in email_sup_teams
    msg.attach(attachment)
  File "C:\Python34\lib\email\mime\nonmultipart.py", line 22, in attach
    'Cannot attach additional subparts to non-multipart/*')
email.errors.MultipartConversionError: Cannot attach additional subparts to non-multipart/*

原来我应该读过

Python 文档中的电子邮件示例

接近一点了。我非常确定这是因为我只使用 1 个 MIME 类型对象来构建我的电子邮件，但尝试添加多个 MIME 对象。基本上为了让它工作，我使用了下面的代码。快乐的时光！

def email_sup_teams(team_name, contact_list, file_attachemnt):
    message_list = []
    for jobs in file_attachemnt:
        for k, v in jobs.items():
            message_list.append(v + ',')
    attachment_text = "\n".join(message_list)
    print(type(attachment_text))
    # Create the container (outer) email message.
    msg = MIMEMultipart()
    #msg = MIMEText(' Failed jobs list. Please see attachment')
    msg['Subject'] = 'Not run Jobs for ' + team_name
    msg['From'] = '[email protected]'
    msg['To'] = '[email protected]'
    msg.preamble = 'Failed jobs list. Please see attachment'
    f = io.StringIO(attachment_text)
    attachment = MIMEText(f.getvalue())
    attachment.add_header('Content-Disposition', 'attachment', filename='jobs_not_run.xls')           
    msg.attach(attachment)

    s = smtplib.SMTP('smlsmtp')
    s.sendmail(msg['From'], msg['To'], msg.as_string())
    s.quit()
    print('\n' + team_name + ' Email Sent')