excel - what caused attachment file changed while Python sending email -


i writing auto send email program using python 2.7. there excel file attachmed in email. need file name header.

i using 2 methods method 1：

part.add_header('content-disposition', 'attachment; filename="%s"' % os.path.basename(att_files_path))

when received email，the attached file wrong format changed bin file , not excel file anymore.

method 2：

part.add_header('content-disposition', 'attachment; filename="aaa.xlsx"')

it ok received excel file ，but file name not same real file name，it add in filename=“”

please give me hand!

#!/usr/bin/python # -*- coding: utf-8 -*- import os import send_mail import smtplib email.mime.multipart import mimemultipart email.mime.text import mimetext email.mime.base import mimebase email.utils import formatdate email import encoders  mail_host = 'mail.xxxx.com'  # 邮箱服务器 mail_port = 25  # 邮箱服务器端口 mail_user = 'suxl'  # 登录邮箱服务器 用户名 mail_pass = 'passsword'  # 登录邮箱服务器 密码  # 附件所在目录 路径 rxemailhome = u'f:\workfiles\周报\\receivers.txt' attachment_path = u'f:\workfiles\周报\\forupdate\myname周报_20170821.xlsx' receiverlist = [] sender = 'suxl@hzmr-tech.com' receivers = ['812331053@qq.com']  # 接收邮件，可设置为你的qq邮箱或者其他邮箱   def getreceiverlist(filename):     lif = open(filename)     li = lif.readlines()     lif.close()     x in range(len(li)):         li[x] = li[x].strip(os.linesep)     while '' in li:         li.remove('')     return li   def send_mail(send_from, send_to, subject, text, att_files_path, server, port, username='', password=''):     ret = true     try:         msg = mimemultipart()         msg['from'] = send_from         msg['to'] = str(send_to)         msg['date'] = formatdate(localtime=true)         msg['subject'] = subject         msg.attach(mimetext(text))          part = mimebase('application', "octet-stream")         part.set_payload(open(att_files_path, "rb").read())         encoders.encode_base64(part)         part.add_header('content-disposition', 'attachment; filename="%s"' % os.path.basename(att_files_path))          #part.add_header('content-disposition', 'attachment; filename="str"')         msg.attach(part)          server = smtplib.smtp(server, port)         server.login(username, password)         server.sendmail(send_from, send_to, msg.as_string())         server.quit()     except smtplib.smtpexception:  # 如果 try 中的语句没有执行，则会执行下面的 ret=false         ret = false     return ret  if os.path.exists(u'f:\workfiles\周报\\receivers.txt'):     receiverlist = getreceiverlist(u'f:\workfiles\周报\\receivers.txt')     if len(receiverlist) == 0:         print("no recevicer!!")         receiverlist = receivers     else:         print"receiverlist include : ", receiverlist else:     print("no recevicer!!")     receiverlist = receivers  result = send_mail(sender, receiverlist, 'week-report', 'fyi', attachment_path, mail_host, mail_port, mail_user, mail_pass) if result:     print "邮件发送成功" else:     print "error: 无法发送邮件"


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