python url监控 并邮件报警

import time
import requests
import smtplib
from email.mime.text import MIMEText
import datetime

def SendEmail(fromAdd,toAdd,subject,text):

    _pwd  = "Yeer2016@sudai"  #授权码

    msg = MIMEText(text)
    msg["Subject"] = subject
    msg["From"]    = fromAdd
    msg["To"]      = toAdd
    try:
        s = smtplib.SMTP_SSL("smtp.sudaizhijia.com", 465)
        s.login(fromAdd, _pwd)
        s.sendmail(fromAdd, toAdd, msg.as_string())
        s.quit()
        print ("Success!")
    except smtplib.SMTPException:
        print('Falied!')
from_="tech-report@sudaizhijia.com"
to_ = ["wangdong@sudaizhijia.com"]   #收件人地址
subject = "URL报警信息"
# url_list=["http://api.sudaizhijia.com","http://event.fastloan360.com","http://www.qianzhouzhou.com","https://data.sudaizhijia.com","http://uat.data.sudaizhijia.com"]     #url地址
url_list=["https://m.1sudai.com/","http://www.qianzhouzhou.com"]

while True:
    time.sleep(20)

    for i in url_list:
        nowTime = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        try:
            code = requests.get(i).status_code
            v = int(code)
            time.sleep(2)
            if isinstance(v,int):
                if v == 200:
                    pass
                else:
                    text = "%s %s 发出报警，值为:%d 请及时查看状态" %(nowTime,i,v)
                    for i in to_:
                        SendEmail(from_, i, subject, text)

        except requests.exceptions.ConnectionError as e:
            text = "%s %s 发出报警，服务可能挂掉 如果有ssl证书可能证书到期" %(nowTime,i)
            for i in to_:
                SendEmail(from_, i, subject, text)