#coding=utf-8 import requests import BeautifulSoup import re import random def decodeAnyWord(w):     try:         w.decode('utf-8')     except:         w = w.decode('gb2312')     else:         w = w.decode('utf-8')     return w def createURL(checkWord):   #create baidu URL with search words     checkWord = checkWord.strip()     checkWord = checkWord.replace(' ', '+').replace('n', '')     baiduURL = 'http://www.baidu.com/s?wd=%s&rn=100' % checkWord     return baiduURL def getContent(baiduURL):   #get the content of the serp     uaList = ['Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.1;+SV1;+.NET+CLR+1.1.4322;+TencentTraveler)',     'Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.1;+SV1;+.NET+CLR+2.0.50727;+.NET+CLR+3.0.4506.2152;+.NET+CLR+3.5.30729)',     'Mozilla/5.0+(Windows+NT+5.1)+AppleWebKit/537.1+(KHTML,+like+Gecko)+Chrome/21.0.1180.89+Safari/537.1',     'Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.1;+SV1)',     'Mozilla/5.0+(Windows+NT+6.1;+rv:11.0)+Gecko/20100101+Firefox/11.0',     'Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+SV1)',     'Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+GTB7.1;+.NET+CLR+2.0.50727)',     'Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+KB974489)']     headers = {'User-Agent': random.choice(uaList)}     r = requests.get(baiduURL, headers = headers)     return r.content def getLastURL(rawurl): #get final URL while there're redirects     r = requests.get(rawurl)     return r.url def getAtext(atext):    #get the text with <a> and </a>     pat = re.compile(r'<a .*?>(.*?)</a>')     match = pat.findall(atext.replace('n', ''))     pureText = match[0].replace('<em>', '').replace('</em>', '')     return pureText.replace('n', '') def getCacheDate(t):    #get the date of cache     pat = re.compile(r'<span class="g">.*?(d{4}-d{1,2}-d{1,2}) </span>')     match = pat.findall(t)     cacheDate = match[0]     return cacheDate def getRank(checkWord, domain): #main line     checkWord = checkWord.replace('n', '')     checkWord = decodeAnyWord(checkWord)     baiduURL = createURL(checkWord)     cont = getContent(baiduURL)     soup = BeautifulSoup.BeautifulSoup(cont)     results = soup.findAll('table', {'class': 'result'})    #find all results in this page     for result in results:         checkData = unicode(result.find('span', {'class': 'g'}))         if re.compile(r'^[^/]*%s.*?' %domain).match(checkData.replace('<b>', '').replace('</b>', '')): #改正则             nowRank = result['id']  #get the rank if match the domain info             resLink = result.find('h3').a             resURL = resLink['href']             domainURL = getLastURL(resURL)  #get the target URL             resTitle = getAtext(unicode(resLink))   #get the title of the target page             rescache = result.find('span', {'class': 'g'})             cacheDate = getCacheDate(unicode(rescache)) #get the cache date of the target page             res = u'%s, 第%s名, %s, %s, %s' % (checkWord, nowRank, resTitle, cacheDate, domainURL)             return res.encode('gb2312')             break     else:         return '>100' domain = 'www.baidu.com' #set the domain which you want to search. print getRank('百度', domain)