发送数据帧作为邮件附件时出错

Question

    `from email.mime.application import MIMEApplication
      from email.mime.multipart import MIMEMultipart
      from email.mime.text import MIMEText
         import smtplib      `
      `SEND_FROM = 'sender mail-ID'
        send_to = 'Receiver Mail Id'
         EXPORTERS = {'dataframe.xlsx': export_excel}      `
       ` def send_dataframe(send_to, subject, body, df):
        multipart = MIMEMultipart()
         multipart['From'] = SEND_FROM
         multipart['To'] = send_to
       multipart['Subject'] = subject
       for filename in EXPORTERS:         `
   ` attachment = MIMEApplication(EXPORTERS[filename](df6))
     attachment['Content-Disposition'] = 'attachment; filename=" 
        {}"'.format(filename)
multipart.attach(attachment)
multipart.attach(MIMEText(body, 'html'))
s = smtplib.SMTP('localhost')
s.sendmail(SEND_FROM, send_to, multipart.as_string())
s.quit()     `

我正在使用此代码将数据框作为电子邮件附件发送，但未显示任何不发送邮件的错误，也未提出一些更好的解决方案将数据框作为电子邮件附件发送

请帮助。提前感谢