Python3实现带附件的定时发送邮件功能

import os
import datetime #定时发送，以及日期
import shutil #文件操作
import smtplib #邮件模块
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.header import Header
import time
import xlwt #excel写入

def eWrite(fLocate,file_sheet,file_subject,style0):
  try:
    if os.path.exists(fLocate):
      os.remove(fLocate)  # 如果文件存在，则删除
    f = xlwt.Workbook(encoding='utf-8')  #打开excel文件
    fs = f.add_sheet(file_sheet)  #sheet名
    subject = list(file_subject)  #列表化
    for i in range(len(subject)): #找到日期列
      if '日期' in subject[i]:
        col_num=i
    for i in range(len(subject)): #sheet标题
      fs.write(0, i, subject[i])

    for i in range(10): #单元格宽度为
      fs.col(i).width=3333

    print("WRITE FINISHED")
    f.save(fLocate)
  except :
    print ("WRITE FAILED")

def eSend(sender,receiver,username,password,smtpserver,subject,e_content,file_path,file_name):
  try:
#邮件头
    message = MIMEMultipart()
    message['From'] = sender#发送
    message['To'] = ",".join(receiver)#收件
    message['Subject'] = Header(subject, 'utf-8')
    message.attach(MIMEText(e_content, 'plain', 'utf-8'))# 邮件正文

# 构造附件
    att1 = MIMEText(open(file_path+file_name,'rb').read(), 'base64', 'utf-8')
    att1["Content-Type"] = 'application/octet-stream'
    att1["Content-Disposition"] = "attachment;filename="+file_name
    message.attach(att1)

#执行
    smtp = smtplib.SMTP()
    smtp.connect(smtpserver) #连接服务器
    smtp.login(username, password) #登录
    smtp.sendmail(sender, receiver, message.as_string()) #发送
    smtp.quit()
    print("SEND")
  except:
    print("SEND FAILED")

while True:
#配置
  #__time_____
  ehour=11#定时小时
  emin=49#定时分钟
  esec=50#定时秒
  current_time = time.localtime(time.time())   #当前时间date
  cur_time = time.strftime('%H%M', time.localtime(time.time()))       #当前时间str
  #__mysql_____

  #__email_____
  sender = '' # 发件人邮箱
  receiver = ['453032441@qq.com'] # 收件人邮箱，可以多个（列表形式）群发
  username = '' # 发件人姓名
  password = '' # smtp密码，qq是给你分配一串，163是自己设置
  smtpserver = '' # 邮箱服务器

  subject = "Hey,here's something interesting"   #邮件标题
  e_content = '{0:^27}\n{1:^27}\n{2:^25}\n{3:^25}'.format('i','/  \\','(-----)','(--------)')  #邮件正文
  #__file_____
  file_path = "D:/"  #文件位置
  file_name="shit.xls"  #文件名
  fLocate = file_path + file_name   #文件路径
  file_subject='I', 'MISS', 'U' #sheet标题
  file_sheet='ok' #sheet名
  style0=xlwt.XFStyle()
  style0.num_format_str='YYYY-MM-DD'
#操作
  if ((current_time.tm_hour == ehour) and (current_time.tm_min == emin) and (current_time.tm_sec == esec)):
    print ("START")
    eWrite(fLocate, file_sheet, file_subject,style0)
    eSend(sender, receiver, username, password, smtpserver, subject, e_content, file_path,file_name)
    print(cur_time)
  time.sleep(1)