使用 BeautifulSoup 抓取 IMDb 页面

Question

我是 WebScraping/Python 和 BeautifulSoup 的新手，很难让我的代码正常工作。

我想抓取 url: http://m.imdb.com/feature/bornondate" 以获得：

名人姓名
名人形象
职业
最佳作品

该页面上的十位名人。我不确定我做错了什么。

这是我的代码：

import urllib2
from bs4 import BeautifulSoup

url = 'http://m.imdb.com/feature/bornondate'

test_url = urllib2.urlopen(url)
readHtml = test_url.read()
test_url.close()

soup = BeautifulSoup(readHtml)
# Using it track the number of Actor
count = 0
# Fetching the value present within tag results
person = soup.findChildren('section', 'posters list')
# Changing the person into an iterator
iterperson = iter(person[0].findChildren('a'))

# Finding 'a' in iterperson. Every 'a' tag contains information of a person
for a in iterperson:
    imgSource = a.find('img')['src'].split('._V1.')[0] + '._V1_SX214_AL_.jpg'
    person = a.findChildren('div', 'label')
    title = person[0].find('span', 'title').contents[0]
    ##profession = person[0].find('div', 'detail').contents[0].split(,)
    ##bestWork = person[0].find('div', 'detail').contents[1].split(,)

    print '*******************************IMDB People Born Today***********************************'
    # Printing the S.No of the person
    print 'S.No. --> ',
    count += 1
    print count
    # Printing the title/name of the person
    print 'Title --> ' + title
    # Printing the Image Source of the person
    print 'Image Source --> ', imgSource
    # Printing the Profession of the person
    ##print 'Profession --> ', profession
    # Printing the Best work of the person
    ##print 'Best Work --> ', bestWork

目前没有打印出来。另外，如果这太模糊了，你能解释一下如何只做名人的名字吗？

这是第一个名人的 html 代码，如果有帮助的话：

<section class="posters list">
<h1>March 7</h1>

    <a href="/name/nm0186505/" class="poster "><img src="http://ia.media-imdb.com/images/M/MV5BMTA2NjEyMTY4MTVeQTJeQWpwZ15BbWU3MDQ5NDAzNDc@._V1._CR0,0,1369,2019_SX40_SY59.jpg" style="background:url('http://i.media-imdb.com/images/mobile/people-40x59-fade.png')" width="40" height="59"><div class="label"><span class="title">Bryan Cranston</span><div class="detail">Actor, "Ozymandias"</div></div></a>

Answer 1

首先，IMDb 明确禁止屏幕抓取 "Conditions of Use":

Robots and Screen Scraping: You may not use data mining, robots, screen scraping, or similar data gathering and extraction tools on this site, except with our express written consent as noted below.

尝试探索 IMDb JSON API 而不是网络抓取方法。

您当前的问题是 - 通过 单独调用 IMDb API 并使用javascript 涉及逻辑。

现在最简单的选择是切换到 selenium 浏览器自动化工具。使用 headless PhantomJS 浏览器的工作示例:

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.PhantomJS()
driver.get("http://m.imdb.com/feature/bornondate")

# waiting for posters to load
wait = WebDriverWait(driver, 10)
posters = wait.until(EC.presence_of_element_located((By.CSS_SELECTOR, "section.posters")))

# extracting the data poster by poster
for a in posters.find_elements_by_css_selector('a.poster'):
    img = a.find_element_by_tag_name('img').get_attribute('src').split('._V1.')[0] + '._V1_SX214_AL_.jpg'

    person = a.find_element_by_css_selector('div.detail').text
    title = a.find_element_by_css_selector('span.title').text

    print img, person, title

打印：

http://ia.media-imdb.com/images/M/MV5BMTA2NjEyMTY4MTVeQTJeQWpwZ15BbWU3MDQ5NDAzNDc@._V1_SX214_AL_.jpg Actor, "Ozymandias" Bryan Cranston
http://ia.media-imdb.com/images/M/MV5BNjUxNjcxMjE4N15BMl5BanBnXkFtZTgwNDk4NjA2MzE@._V1_SX214_AL_.jpg Actress, "Karla" Laura Prepon
http://ia.media-imdb.com/images/M/MV5BMTQ4MzM1MDAwMV5BMl5BanBnXkFtZTcwNTU4NzQwMw@@._V1_SX214_AL_.jpg Actress, "The Mummy" Rachel Weisz
http://ia.media-imdb.com/images/M/MV5BMjE0Mjg0NzE2Nl5BMl5BanBnXkFtZTcwMDE1MTkxMw@@._V1_SX214_AL_.jpg Actor, "Jarhead" Peter Sarsgaard
http://ia.media-imdb.com/images/M/MV5BMTMyOTYzODQ5MF5BMl5BanBnXkFtZTcwMjE3MDgzMQ@@._V1_SX214_AL_.jpg Actress, "Blades of Glory" Jenna Fischer
http://ia.media-imdb.com/images/M/MV5BMzE2OTAwNzM0Ml5BMl5BanBnXkFtZTcwNzE1MDg0Mw@@._V1_SX214_AL_.jpg Actress, "Tangled" Donna Murphy
http://ia.media-imdb.com/images/M/MV5BMTI0OTMzMzE0N15BMl5BanBnXkFtZTcwMjI1MzYyMQ@@._V1_SX214_AL_.jpg Actor, "How the Grinch Stole Christmas" T.J. Thyne
http://ia.media-imdb.com/images/M/MV5BNzczODkyNzY4OV5BMl5BanBnXkFtZTcwNTU0NjQzMQ@@._V1_SX214_AL_.jpg Actor, "Home Alone" John Heard
http://ia.media-imdb.com/images/M/MV5BMTg4MjU2MzA2OV5BMl5BanBnXkFtZTgwOTIxMjc4MjE@._V1_SX214_AL_.jpg Actress, "Beerfest" Audrey Marie Anderson
http://ia.media-imdb.com/images/M/MV5BMTQyOTc5NzA0M15BMl5BanBnXkFtZTYwODQ2MjYz._V1_SX214_AL_.jpg Producer, "Kick-Ass" Matthew Vaughn

Answer 2

我正在做同样的作业。 URLlib 库加载 Web 的静态内容 URL。使用 selenium 获得完整的 html，其中也包括动态内容。如果您使用 urllib2 库，生成的 html 将是

<span class="loading"></span>

希望对您有所帮助。

使用 BeautifulSoup 抓取 IMDb 页面

Webscraping an IMDb page using BeautifulSoup

python

html

web-scraping

beautifulsoup

html-parsing