信息抓取来源：http://www.tianqi.com/（天气网 ）
邮件服务器（发送）：126邮箱
邮件服务器（接收）：QQ邮箱
代码如下：
#!/usr/bin/env python
# -*- coding:utf-8 -*-
import smtplib
import urllib,urllib2
import re
#定义函数，发送邮件
def sendMail(body):
smtp_server = 'smtp.126.com'
from_mail = 'hzpzc68@126.com'
#密码使用授权码替代，否则会报535等认证错误
mail_pass = '*********'
to_mail = ['1124657106@qq.com']
from_name = 'Weather Monitor'
subject = 'Raining Today!'
mail = [
"From: %s <%s>" % (from_name, from_mail),
"To: %s" % ','.join(to_mail),
"Subject: %s" % subject,
"",
body
]
msg = '\n'.join(mail)
try:
s = smtplib.SMTP_SSL('smtp.126.com',465)
s.login(from_mail, mail_pass)
s.sendmail(from_mail, to_mail, msg)
s.quit()
except smtplib.SMTPException as e:
raise e
if __name__ == "__main__":
headers={'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36'}
#定位城市，深圳
url='http://www.tianqi.com/shenzhen/'
try:
request = urllib2.Request(url,headers=headers)
response = urllib2.urlopen(request)
urlhtml = response.read()
except Exception as e:
raise e
#抓取关键字正则表达式
re_page = re.compile(r'<dd class="name">.*?<h2>(.*?)</h2>.*?<dd class="week">(.*?)</dd>.*?<span>.*?<b>(.*?)</b>(.*?)</span>',re.S)
items = re_page.findall(urlhtml)
dic = {}
dic["城市"] = items[0][0]
dic["日期"] = items[0][1]
dic["天气"] = items[0][2]
dic["温度"] = items[0][3]
#判断天气是否含有“雨”关键字
if "雨" in dic["天气"]:
sendMail("It's rainy today. Remember to bring your umbrella!" +"\n" +"城市: " +dic["城市"] +"\n" +"日期: " +dic["日期"] +"\n" +"天气: " +dic["天气"] +"\n" +"温度: " +dic["温度"])运行结果：
