在python中將文件附加到電子郵件導致空白文件名？

Question

下面的代碼片段工作正常，除了電子郵件中產生的附件文件名爲空白（該文件在gmail中以'noname'打開）之外。我究竟做錯了什麼？

file_name = RecordingUrl.split("/")[-1] 
      file_name=file_name+ ".wav" 
      urlretrieve(RecordingUrl, file_name) 

      # Create the container (outer) email message. 
      msg = MIMEMultipart() 
      msg['Subject'] = 'New feedback from %s (%a:%a)' % (
From, int(RecordingDuration)/60, int(RecordingDuration) % 60) 

      msg['From'] = "noreply@example.info" 
      msg['To'] = 'user@gmail.com' 
      msg.preamble = msg['Subject']     
      file = open(file_name, 'rb') 
      audio = MIMEAudio(file.read()) 
      file.close() 
      msg.attach(audio) 

      # Send the email via our own SMTP server. 
      s = smtplib.SMTP() 
      s.connect() 
      s.sendmail(msg['From'], msg['To'], msg.as_string()) 
      s.quit() 

Answer 1

你需要使用一個add_header methodContent-Disposition header添加到消息的audio部分：

file = open(file_name, 'rb') 
audio = MIMEAudio(file.read()) 
file.close() 
audio.add_header('Content-Disposition', 'attachment', filename=file_name) 
msg.attach(audio)