Python爬虫爬取美剧网站的实现代码

def get_urls(self):
  try:
    for i in range(2015,25000):
      base_url='http://cn163.net/archives/'
      url=base_url+str(i)+'/'
      if requests.get(url).status_code == 404:
        continue
      else:
        self.save_links(url)
  except Exception,e:
    pass

# -*- coding:utf-8 -*-
import requests 
import re
import sys
import threading
import time
reload(sys)
sys.setdefaultencoding('utf-8')
class Archives(object):

  def save_links(self,url):
    try:

      data=requests.get(url,timeout=3)
      content=data.text
      link_pat='"(ed2k://\|file\|[^"]+?\.(S\d+)(E\d+)[^"]+?1024X\d{3}[^"]+?)"'
      name_pat=re.compile(r'<h2 class="entry_title">(.*?)</h2>',re.S)
      links = set(re.findall(link_pat,content))
      name=re.findall(name_pat,content)
      links_dict = {}
      count=len(links)
    except Exception,e:
      pass
    for i in links:
      links_dict[int(i[1][1:3]) * 100 + int(i[2][1:3])] = i#把剧集按s和e提取编号
    try:
      with open(name[0].replace('/',' ')+'.txt','w') as f:
        print name[0]
        for i in sorted(list(links_dict.keys())):#按季数+集数排序顺序写入
          f.write(links_dict[i][0] + '\n')
      print "Get links ... ", name[0], count
    except Exception,e:
      pass

  def get_urls(self):
    try:
      for i in range(2015,25000):
        base_url='http://cn163.net/archives/'
        url=base_url+str(i)+'/'
        if requests.get(url).status_code == 404:
          continue
        else:
          self.save_links(url)
    except Exception,e:
      pass
  def main(self):
    thread1=threading.Thread(target=self.get_urls())
    thread1.start()
    thread1.join()
  if __name__ == '__main__':
  start=time.time()
  a=Archives()
  a.main()
  end=time.time()
  print end-start