findme.py

#!/usr/bin/env python
#-*- coding: UTF-8 -*-

import requests
import re

url = 'http://www.douban.com/group/machome/discussion?start=%d'

topic_ptn = re.compile(r'href=\"(.+?group/topic.+?)/\"')
user_ptn = re.compile(r'chendahui007')
for i in range(0, 200, 25):
    u = url % i
    res = requests.get(u).text
    topics = topic_ptn.findall(res)
    for topic in topics:
        if user_ptn.findall(requests.get(topic).text):
            print topic
        else:
            print "这个topic没找到我的回复"
    print "第%s页" % i