IMDB-TOP_250-爬虫

这个小学期Python大作业搞了个获取IMDB TOP 250电影全部信息的爬虫。第二次写爬虫，比在暑假集训时写的熟练多了。欢迎大家评论。

 '''
 ************************************************
 *Time：2017.9.11
 *Target：All movies' information of IMDB TOP_250
 *Resources：http://www.imdb.cn/IMDB250/
 ************************************************
 '''

 import re
 import requests
 import numpy as np
 import matplotlib.pyplot as plt
 from bs4 import BeautifulSoup

 num = 1 #电影计数
 All_txt = [] #全部电影的信息
 headers={'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.221 Safari/537.36 SE 2.X MetaSr 1.0'}#浏览器代理
 def  getHTMLText(url):
     try:
         #print(url)
         r = requests.get( url,headers = headers )
         #print(r)
         r.encoding = 'utf-8'
         return r.text
     except:
         return "错误"

 #从每一部电影的页面中获取全部信息
 def get_all_information(url,page):
     global num,All_txt
     txt = getHTMLText(url)
     if txt != "错误":
         print('page'+str(page)+' NO.'+str(num)+' Get it!')
     if num == 247:
         print('Finished!!!')
     soup = BeautifulSoup(txt,"html.parser")
     Cname,Ename,Score,title,Actor,Starring,Infor = '','','','','','',''

     #TOP250-film_Chinese_name&Score
     infor_1 = soup.find_all('div',class_ = 'hdd')
     rel = '<h3>'+'[\s\S]*?'+'</h3>'
     pattern = re.compile(rel)
     Cname = ''.join(pattern.findall(str(infor_1[0])))
     Cname = Cname.replace('<h3>','').replace('</h3>','')
     #print(Cname)
     #find_the_year & save
     rel = '（'+'[\s\S]*?'+'）'
     pattern = re.compile(rel)
     time_ = ''.join(pattern.findall(Cname))
     #print(time_)
     with open('time.txt','a',encoding='utf-8') as t:
         t.write( time_.replace('（','').replace('）','') + '\n' )
     #find_Score
     rel = '<i>'+'[\s\S]*?'+'</i>'
     pattern = re.compile(rel)
     Score = ''.join(pattern.findall(str(infor_1[0])))
     Score = Score.replace('<i>','').replace('</i>','')
     #print(Cname,Score)

     #TOP250-film_many_infor
     now = soup.find_all('div',class_ = 'bdd clear')
     #print(now[0])
     a = BeautifulSoup(str(now[0]), "html.parser")
     many_infor = a.find_all('li')

     #TOP250-film_Ename
     Ename = str(many_infor[0]).replace('<li>','').replace('<i>','').replace('</i>','').replace('</li>','').replace('<a>','').replace('</a>','')
     #TOP250-film_Actor
     Actor_temp = BeautifulSoup(str(many_infor[2]), "html.parser").find_all('a')
     Actor = Actor_temp[0].get_text().replace('导演：','')
     #TOP250-film_Starring
     Starring_temp = BeautifulSoup(str(many_infor[3]), "html.parser").find_all('a')
     for i in Starring_temp:
         Starring += i.get_text().replace(' ','') + ' '
     #print(Starring)

     #Top-film_Infor
     for j in range(4,7):
         Infor_temp = BeautifulSoup(str(many_infor[j]), "html.parser")
         for i in Infor_temp.children:
             Infor += i.get_text().replace(' ','') + ' '
         Infor += '\n'
     #print(Infor)

     #TOP250-film_Synopsis
     content =  soup.find_all('div',class_ = 'fk-4 clear')
     #print(content)
     soup_con = BeautifulSoup(str(content[0]), "html.parser")
     title = soup_con.find_all('div',class_ = 'hdd')
     title = str(title[0]).replace('<div class="hdd">','').replace('</div>','\n')
     #print(title)
     content_1 = soup_con.find_all('div',class_ = 'bdd clear')
     content_1 = str(content_1[0]).replace('<div class="bdd clear" style="font-size:15px">','').replace('</div>','')
     content_1 = content_1.replace('<!-- <p><a href="#">更多剧情 >></a></p>  -->','').replace('<br/>','\n')

     #Save_all_information
     All_txt.append('第'+str(num)+'部'+'\n')
     All_txt.append( Cname+'\n' )
     All_txt.append( '【英文名】'+Ename+'\n' )
     All_txt.append( '【评分】'+Score+'\n' )
     All_txt.append( '【导演】'+Actor+'\n' )
     All_txt.append( '【主演】'+Starring+'\n' )
     All_txt.append( Infor+'\n' )
     All_txt.append( title+'\n'+content_1+'\n' )
     All_txt.append('\n')
     num += 1

 #在每一页中得到当前页的全部电影的url
 def getin_one(url,page):
     txt = getHTMLText(url)
     soup = BeautifulSoup(txt, "html.parser")
     #print(soup)
     temp = soup.find_all('div',class_="ss-3 clear")
     rel = '<a href="' + '[\s\S]*?' + '">'
     pattern = re.compile(rel)
     All_url = pattern.findall( str(temp[0]) )
     for i in range(len(All_url)):
         temp_url = 'http://www.imdb.cn'+All_url[i].replace('<a href="','').replace('">','')
         get_all_information(temp_url,page)
     #print(All_url)

 #将所有电影的年份统计并生成条形图
 def Analyze_some_infor():
     plt.rc('font', family='SimHei', size=13)#字体及大小
     #Analyze_time
     file = open('time.txt')
     a,b,c,d,e,f = 0,0,0,0,0,0
     for line in file:
         line = eval(line)
         if line == 0:
             f += 1
         elif line < 1940 and line >= 1920:
             a += 1
         elif line < 1960 and line >= 1940:
             b += 1
         elif line < 1980 and line >= 1960:
             c += 1
         elif line < 2000 and line >= 1980:
             d += 1
         else:
             e += 1
     times = [a,b,c,d,e,f]
     range_time = ['1920-1940','1940-1960','1960-1980','1980-2000','2000-现在','无信息']
     idx = np.arange(len(range_time))
     width = 0.5
     plt.bar(idx,times,width,color='green')
     plt.xticks(idx+width/2, range_time, rotation=40)
     plt.xlabel('电影年代')
     plt.ylabel('数目')
     plt.savefig('time_pic.jpg')
     plt.show()

 def main():
     global All_txt
     getin_one('http://www.imdb.cn/IMDB250/',1)
     for i in range(2,10):
         getin_one( 'http://www.imdb.cn/imdb250/'+str(i) , i )
     #将已有内容清空
     with open('All_infor.txt','w',encoding='utf-8') as x:
         pass
     with open('All_infor.txt','a',encoding='utf-8') as x:
         for i in All_txt:
             x.write(i)
     Analyze_some_infor()

 main()

作者： LB919
出处：http://www.cnblogs.com/L1B0/
该文章为LB919投入了时间和精力的原创；
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