email exchange, python

　　address_book = ['receiver@test.cn']
    msg = MIMEMultipart()
    sender = 'sender@sender.cn'
    subject = "My subject2222222222222"
    body = "This is my email body"

    msg['From'] = sender
    msg['To'] = ','.join(address_book)
    msg['Subject'] = subject
    msg.attach(MIMEText(body, 'plain'))
    attachment = MIMEBase('application', 'octet-stream')
    attachment.set_payload(open('\\filepath\2021-08-24.xlsx', 'rb+').read())
    encoders.encode_base64(attachment)

    attachment.add_header('Content-Disposition', 'attachment; filename="1abc.xlsx"')
    msg.attach(attachment)

    text = msg.as_string()
    s = smtplib.SMTP('smtp.smtp.net')
    s.sendmail(sender, address_book, text)
    s.quit()