第一步：发送邮件模块封装，以下以QQ邮箱为例：

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.header import Header


def send_email_fujian(fujian_path,file_name):
    mail_host = "smtp.qq.com"  # 设置服务器
    mail_user = "xxxxxx@qq.com"  # 用户名
    mail_pass = "qefidvxpbltxdfha"  # 口令

    sender = 'xxxxxx@qq.com'
    receivers = ['xxxxxx@qq.com']  # 接收邮件，可设置为你的QQ邮箱或者其他邮箱

    # 创建一个带附件的实例
    message = MIMEMultipart()
    message['From'] = Header("发送邮件", 'utf-8')
    message['To'] = Header("测试", 'utf-8')
    subject = 'Python SMTP 邮件测试'
    message['Subject'] = Header(subject, 'utf-8')

    # 邮件正文内容
    message.attach(MIMEText('这是Python 邮件发送测试……', 'plain', 'utf-8'))

    # 构造附件
    att1 = MIMEText(open(fujian_path, 'rb').read(), 'base64', 'utf-8')
    att1["Content-Type"] = 'application/octet-stream'
    # 这里的filename可以任意写，写什么名字，邮件中显示什么名字
    att1["Content-Disposition"] = 'attachment; filename=report.html'
    message.attach(att1)

    try:
        smtpObj = smtplib.SMTP()
        smtpObj.connect(mail_host, 25)  # 25 为 SMTP 端口号
        smtpObj.login(mail_user, mail_pass)
        smtpObj.sendmail(sender, receivers, message.as_string())
        print("邮件发送成功")
    except smtplib.SMTPException:
        print("Error: 无法发送邮件")

第二步：应用发送邮件模块（运行测试用例，将生成的测试报告，发到邮箱）：

import unittest, HTMLTestRunner, time,os
from send_email import email_utls
if __name__ == '__main__':
    current_path = os.path.dirname(__file__)
    case_path = current_path
    all_case = unittest.defaultTestLoader.discover(start_dir=case_path,
                                                   pattern='test_*.py',
                                                   top_level_dir=None)
    main_suit = unittest.TestSuite()
    main_suit.addTest(all_case)

    report_path = current_path + '/../report/TestReport_' + time.strftime('%Y-%m-%d_%H_%M_%S ', time.localtime(time.time())) + '.html'
    fp = open(report_path, 'w', encoding='utf-8')
    runner = HTMLTestRunner.HTMLTestRunner(stream=fp,
                                           title="测试报告",
                                           description="用例执行情况")
    runner.run(main_suit)
  #发送邮件
    email_utls.send_email_fujian(report_path,'TestReport_' + time.strftime('%Y-%m-%d_%H_%M_%S ', time.localtime(time.time())) + '.html')

收到的邮件和运行生成的测试报告：