Preface

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code show as below:

# -*- coding: utf-8 -*-
import re
import urllib2
from bs4import BeautifulSoup
import string, time
import pymongo
  
NUM = 0 #Global variable, number of movies
m_type = u'' #Global variable, movie type
m_site = u'qq' #global variable, movie website
  
#Acquire web content according to the specified URL
def gethtml(url):
    req = urllib2.Request(url)
    response = urllib2.urlopen(req)
    html = response.read()
    return html
  
#Get movie categories from the movie category list page
def gettags(html):
    global m_type
    soup = BeautifulSoup(html) #Filter out the classified content
    #print soup
    #<ulclass="clearfix _group" gname="mi_type" gtype="1">
    tags_all = soup.find_all('ul', {'class' :'clearfix _group' ,'gname' :'mi_type'})
    #print len(tags_all), tags_all
    #print str(tags_all[1]).replace('\n','')
  
    #<a _hot="tag.sub" class="_gtag _hotkey" href="http://v.qq.com/list/1_0_-1_-1_1_0_0_20_0_-1_0.html" title="action" tvalue="0 ">Action</a>
    re_tags = r'<a _hot=\"tag\.sub\" class=\"_gtag _hotkey\" href=\"(.+?)\" title=\"(.+?)\" tvalue=\" (.+?)\">.+?</a>'
    p = re.compile(re_tags, re.DOTALL)
  
    tags = p.findall(str(tags_all[0]))
    if tags:
        tags_url = {}
        #print tags
        for tagin tags:
            tag_url = tag[0].decode('utf-8')
            #print tag_url
            m_type = tag[1].decode('utf-8')
            tags_url[m_type] = tag_url
              
    else:
            print"Not Find"
    return tags_url
  
#Get the number of pages in each category
def get_pages(tag_url):
    tag_html = gethtml(tag_url)
    #divclass="paginator
    soup = BeautifulSoup(tag_html) #Filter out the html of the tag page
    #print soup
    #<divclass="mod_pagenav" id="pager">
    div_page = soup.find_all('div', {'class' :'mod_pagenav','id' :'pager'})
    #print div_page #len(div_page), div_page[0]
  
    #<aclass="c_txt6" href="http://v.qq.com/list/1_2_-1_-1_1_0_24_20_0_-1_0.html" title="25"><span>25</span></a>
    re_pages = r'<a class=.+?><span>(.+?)</span></a>'
    p = re.compile(re_pages, re.DOTALL)
    pages = p.findall(str(div_page[0]))
    #print pages
    if len(pages) >1:
        return pages[-2]
    else:
        return 1
      
  
def getmovielist(html):
    soup = BeautifulSoup(html)
  
    #<ulclass="mod_list_pic_130">
    divs = soup.find_all('ul', {'class' :'mod_list_pic_130'})
    #print divs
    for div_htmlin divs:
        div_html = str(div_html).replace('\n','')
        #print div_html
        getmovie(div_html)
  
  
def getmovie(html):
    global NUM
    global m_type
    global m_site
  
    re_movie = r'<li><a class=\"mod_poster_130\" href=\"(.+?)\" target=\"_blank\" title=\"(.+?)\"><img.+ ?</li>'
    p = re.compile(re_movie, re.DOTALL)
    movies = p.findall(html)
    if movies:
        conn = pymongo.Connection('localhost',27017)
        movie_db = conn.dianying
        playlinks = movie_db.playlinks
        #print movies
        for moviein movies:
            #print movie
            NUM +=1
            print"%s: %d"% ("=" *70, NUM)
            values ​​= dict(
                movie_title = movie[1],
                movie_url = movie[0],
                movie_site = m_site,
                movie_type = m_type
                )
            print values
            playlinks.insert(values)
            print"_" *70
            NUM +=1
            print"%s: %d"% ("=" *70, NUM)
  
    #else:
    # print"Not Find"
  
def getmovieinfo(url):
    html = gethtml(url)
    soup = BeautifulSoup(html)
  
    #pack pack_album album_cover
    divs = soup.find_all('div', {'class' :'pack pack_album album_cover'})
    #print divs[0]
  
    #<a href="http://www.tudou.com/albumplay/9NyofXc_lHI/32JqhiKJykI.html" target="new" title=""Blood Drops" Exclusive Documentary" wl="1"> </a>
    re_info = r'<a href=\"(.+?)\" target=\"new\" title=\"(.+?)\" wl=\".+?\"> </a>'
    p_info = re.compile(re_info, re.DOTALL)
    m_info = p_info.findall(str(divs[0]))
    if m_info:
        return m_info
    else:
        print"Not find movie info"
  
    return m_info
  
  
def insertdb(movieinfo):
    global conn
    movie_db = conn.dianying_at
    movies = movie_db.movies
    movies.insert(movieinfo)
  
if __name__ == "__main__":
    global conn
  
    tags_url ="http://v.qq.com/list/1_-1_-1_-1_1_0_0_20_0_-1_0.html"
    #print tags_url
    tags_html = gethtml(tags_url)
    #print tags_html
    tag_urls = gettags(tags_html)
    #print tag_urls
  
  
    for urlin tag_urls.items():
        print str(url[1]).encode('utf-8') #,url[0]
        maxpage =int(get_pages(str(url[1]).encode('utf-8')))
        print maxpage
  
        for xin range(0, maxpage):
            #http://v.qq.com/list/1_0_-1_-1_1_0_0_20_0_-1_0.html
            m_url = str(url[1]).replace('0_20_0_-1_0.html','')
            movie_url ="%s%d_20_0_-1_0.html"% (m_url, x)
            print movie_url
            movie_html = gethtml(movie_url.encode('utf-8'))
            #print movie_html
            getmovielist(movie_html)
            time.sleep(0.1)