python发送邮件（在邮件中显示HTMLTestRunner生成的报告）

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from HTMLTestRunner import HTMLTestRunner
from email.header import Header
import unittest
import time,os

#==============定义发送邮件 ===============

def send_mail(file_new):
    f = open(file_new,'rb')
    #读取测试报告正文
    mail_body = f.read()
    f.close()
    # 发送邮箱服务器
    smtpserver = "smtp.wondershare.cn"
    # 发件人邮箱
    sender = 'buyer_1291455767_per@wondershare.cn'
    # 发件人邮箱密码
    password = 'Hello789'
    # 接收人邮箱
    receiver = ['jiangyf@wondershare.cn','buyer_1291455767_per@wondershare.cn']

    #通过  模块构造的带附件的邮件如图
    msg = MIMEMultipart()
    #编写html类型的邮件正文，MIMEtext()用于定义邮件正文
    #发送正文
    text = MIMEText(mail_body, 'html', 'utf-8')
    text['Subject'] = Header('自动化测试报告', 'utf-8')
    msg.attach(text)
    #发送附件
    #Header()用于定义邮件标题
    msg['Subject'] = Header('自动化测试报告', 'utf-8')
    msg_file = MIMEText(mail_body, 'html', 'utf-8')
    msg_file['Content-Type'] = 'application/octet-stream'
    msg_file["Content-Disposition"] = 'attachment; filename="TestReport.html"'
    msg.attach(msg_file)

# 如果只发正文的话，上面的代码 从receiver下面到这段注释上面
# 全部替换为下面的两行代码即可，上面的代码是增加了发送附件的功能。
#     text = MIMEText(mail_body, 'html', 'utf-8')
#     text['Subject'] = Header('自动化测试报告', 'utf-8')

    smtp = smtplib.SMTP()
    smtp.connect(smtpserver)
    smtp.login(sender, password)  # 登录的用户名和密码
    smtp.sendmail(sender, receiver, msg.as_string())
    smtp.quit()
    print('sendmail success')

#======================查找最新的测试报告==========================

def new_report(testreport):
    dirs = os.listdir(testreport)
    dirs.sort()
    newreportname = dirs[-1]
    print('The new report name: {0}'.format(newreportname))
    file_new = os.path.join(testreport, newreportname)
    return file_new

if __name__ == '__main__':
    test_report = "D:\\Python\\Demo\\report"
    new_report = new_report(test_report)
    send_mail(new_report)