基于python的豆瓣“我看过的电影”的爬虫

#!/usr/bin/env python
# -*- coding: cp936 -*-
# Filename: backup_ver1.py

import urllib2
import re
import sys
import xlwt
import time

wbk=xlwt.Workbook()
sheet1=wbk.add_sheet("my_sheet1")
sheet1.write(0,0,u'影片代码')
sheet1.write(0,1,u'影片名称')
sheet1.write(0,2,u'星级')
sheet1.write(0,3,u'日期')
sheet1.write(0,4,u'标签')
sheet1.write(0,5,u'短评')

reload(sys)
sys.setdefaultencoding( "utf-8" )

# 打印系统初始化界面
print u"""  
---------------------------------------  
   程序：豆瓣爬虫  
   版本：2.0  
   作者：anzic
   日期：2014-11-13  
   语言：Python 2.7  
   功能：按提示输入后提取指定用户的豆列
---------------------------------------  
"""
print u'请输入用户代号，回车则为默认'
ainput=raw_input()
if ainput=='':
    person=60683287
else:
    person=ainput
print u'请输入要打印的页数'
page_num=raw_input()

user_agent = 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)' 
headers = { 'User-Agent' : user_agent }

i=0
for page in range(1,int(page_num)+1):
    myUrl = "http://m.douban.com/movie/people/"+str(person)+"/watched?page="+str(page)
    req = urllib2.Request(myUrl,headers = headers)  
    response = urllib2.urlopen(req)  
    the_page = response.read()  

    #f = file(u'抓取网页.html', 'w')
    #f.write(the_page)
    #f.close

    uPage = the_page.decode("utf-8")

    #re.findall()返回list
    myItems = re.findall('<a href="/movie/subject/.*?<br>.*?</div>',uPage,re.S)
    for item in myItems:
        # code为电影对应代码
        code1=re.findall('\d+',item,re.S)
        code=code1[0]

        # name为电影名称
        item=item.replace(ur':',ur'')
        name=re.findall(ur'">(.*?)</a>',item,re.S)

        # mark为电影评分
        mark1=re.findall(ur'span>\(([1-5])[\u4e00-\u9fa5]',item,re.S)
        if len(mark1)>0:
            mark=mark1[0]
        else:
            mark=[]

        # date为观看日期
        date1=re.findall(ur'<br>(\d{4}-\d{2}-\d{2})',item,re.S)
        date=date1[0]

        # comment为短评   
        comment1=re.findall(ur'<br>短评\s(.*?)\s*</div>',item,re.S)
        if len(comment1)==0:
            comment=[]
        else:
            comment=comment1[0].decode("utf-8")

        # tag为标签
        tag1=re.findall(ur'<br>标签\s(.*?)\s*<br>',item,re.S)
        if len(tag1)==0:
            tag=[]
        else:
            tag=tag1[0].decode("utf-8")
        # 判断提取名称是否出现问题
        if len(name)==0:
            errorlist.append(code)

        # 写入excel
        i+=1
        sheet1.write(i,0,code)
        sheet1.write(i,1,name)
        sheet1.write(i,2,mark)
        sheet1.write(i,3,date)
        sheet1.write(i,4,tag)
        sheet1.write(i,5,comment)
    print 'Page',page,'is OK'
    time.sleep(1)

wbk.save(u"电影导出.xls")