如何用Excel文件发送电子邮件（xlsx）附件在Python中

Question

我需要发送一封带有Excel附件的电子邮件 我的代码如下，可以发送电子邮件， 但是当我收到电子邮件时，附件文件不是Excel文件~~ 看来我重视~~~

我有添加不同的电子邮件地址格式错误接收了该邮件， 但他们都收到了未知格式文件

#!/usr/bin/python 
# -*- coding: UTF-8 -*- 
import os 
import datetime 
import sys 
import smtplib 
from email.mime.multipart import MIMEMultipart 
from email.mime.text import MIMEText 
from email.header import Header 
from email.mime.base import MIMEBase 
from email import encoders 

mail_host = "mysever" # 设置服务器 
mail_user = "me" # 用户名 
mail_pass = "me123" # 口令 

EMAILHOME = u'F:\Workfiles\weekreport\\forupdate' 
sender = 'me@gmail.com' 
receivers = ['aaaaaa@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() 
    for x in range(len(li)): 
     li[x] = li[x].strip(os.linesep) 
    while '' in li: 
     li.remove('') 
    return li 


def aisendmail(): 
    ret = True 
    try: 
     message = MIMEMultipart() 
     message['From'] = Header("myname", 'utf-8') 
     message['To'] = Header("youname", 'utf-8') 
     message.attach(MIMEText('weekreport', 'plain', 'utf-8')) # 三个参数：第一个为文本内容，第二个 plain 设置文本格式，第三个 utf-8 设置编码 

     subject = 'myname-weekreport' 
     message['Subject'] = Header(subject, 'utf-8') 

     att1 = MIMEBase('application', "octet-stream") 
     att1.set_payload(open(u"F:\Workfiles\weekreport\\forupdate\myname_weekreport_20170821.xlsx",'rb').read()) 
     encoders.encode_base64(att1) 
     att1.add_header('Content-Disposition', 'attachment; filename="myname-weekreport"') 
     message.attach(att1) 

     if os.path.exists(EMAILHOME + r'\receivers.txt'): 
      receiverslist = getReceiverlist(EMAILHOME + r'\receivers.txt') 
      print("receicerlist include:", receiverslist) 
      if len(receiverslist) == 0: 
       print"no receiver!!!" 
       receiverslist = receivers 
     else: 
      receiverslist = receivers 

     server = smtplib.SMTP() 
     server.connect(mail_host, 25) # 发件人邮箱中的SMTP服务器，端口是25 
     server.login(mail_user, mail_pass) # 括号中对应的是发件人邮箱账号、邮箱密码 
     server.sendmail(sender, receiverslist, message.as_string()) # 括号中对应的是发件人邮箱账号、收件人邮箱账号、发送邮件 
     server.quit() # 关闭连接 
    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 

result = aisendmail() 
if result: 
    print "邮件发送成功" 
else: 
    print "Error: 无法发送邮件" 

我遵循不同的方式来添加Excel附加换货如下：但他们都失败了（这意味着它不能接受Excel格式文件）

方法1：

att1 = MIMEBase('application', 'octet-stream') #'octet-stream': binary data 
att1.set_payload(open(file, 'rb').read()) 
encoders.encode_base64(att1) 
att1.add_header('Content-Disposition', 'attachment; filename="%s"' % os.path.basename(file)) 
msg.attach(att1) 

结果： 收到一个未知格式文件

方法2：

with open(u"F:\Workfiles\周报\\forupdate\xxx_周报_20170821.xlsx", "rb") as fil: 
     part = MIMEApplication(
      fil.read(), 
      Name=basename(u"F:\Workfiles\周报\\forupdate\xxx_周报_20170821.xlsx") 
     ) 
     part['Content-Disposition'] = 'attachment; filename="%s"' % basename(u"F:\Workfiles\周报\\forupdate\xxx_周报_20170821.xlsx") 
     message.attach(part) 

结果： 接到仓格式文件

方法3：

att1 = MIMEApplication(open('foo.xlsx','rb').read()) 
att1.add_header('Content-Disposition', 'attachment', filename="foo.xlsx") 
msg.attach(att1) 

结果： 收到一个未知格式文件

Answer 1

试试这个代码添加附件：

with open(f, "rb") as fil: 
      part = MIMEApplication(
       fil.read(), 
       Name=basename(f) 
      ) 
      part['Content-Disposition'] = 'attachment; filename="%s"' % basename(f) 
      msg.attach(part)