python 发送带附件邮件

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication


def sendEmail(title, text, send, to, passwd, smtp_server, file):
    '''
    发送带附件的邮件
    :param title: 邮件标题
    :param text: 邮件正文
    :param send: 发送者邮箱
    :param passwd: 授权码
    :param to: 接收者邮箱
    :param smtp_server: 发送邮件的服务器
    :param file: 需要发送的附件
    :return:
    '''
    msg = MIMEMultipart()
    msg['From'] = send
    msg['To'] = to
    #文字部分
    msg['Subject'] = title  # 主题
    strstr=text  #文字内容
    att = MIMEText(strstr,'plain','utf-8')
    msg.attach(att)
    #附件
    att = MIMEApplication(open(file,'rb').read())  #你要发送的附件地址
    att.add_header('Content-Disposition', 'attachment', filename=file) #filename可随意取名
    msg.attach(att)
    server = smtplib.SMTP()
    server.connect(smtp_server)   #连接smtp邮件服务器
    server.login(send,passwd)   #登录smtp邮件服务器
    server.sendmail(send, to, msg.as_string())    #发送
    server.close()  #关闭

if __name__ == '__main__':

    smtp_server = 'smtp.qq.com'  # 使用QQ邮箱的SMTP服务器，可切换
    from_mail = '*****@qq.com' 
    mail_pass = '*****'  
    to_mail = '******@qq.com' 
    title = 'test'  
    text = 'send test'
    file = 'report_2020-04-08-11-02-30.html'
    sendEmail(title=title, text=text, send=from_mail, to=to_mail, passwd=mail_pass, smtp_server=smtp_server, file=file)