【发布时间】:2019-09-06 03:48:16
【问题描述】:
我正在尝试提取每个 twitter 上的点赞信息,但它只返回错误的点赞数或根本没有。我很确定我的代码是正确的。我相信这可能是因为 Twitter 试图阻止人们从他们的网站上抓取信息。有没有办法来解决这个问题?还有一种方法可以查看喜欢特定推文的每个人吗?
import re
import requests
import urllib
from selenium import webdriver
from selenium.webdriver.support.ui import Select
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.common.keys import Keys
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import NoSuchElementException
from selenium.common.exceptions import NoAlertPresentException
from bs4 import BeautifulSoup
import sys
import unittest, time
import openpyxl
url = ["https://twitter.com/CocaCola?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Eauthor"]
for x in url:
d = webdriver.Chrome()
actions = ActionChains(d)
d.get(x)
res = requests.get(x)
page = urllib.urlopen(x)
numb = 0;
SCROLL_PAUSE_TIME = 0.5
# Get scroll height
last_height = d.execute_script("return document.body.scrollHeight")
while True:
# Scroll down to bottom
d.execute_script("window.scrollTo(0, document.body.scrollHeight);")
# Wait to load page
time.sleep(SCROLL_PAUSE_TIME)
# Calculate new scroll height and compare with last scroll height
new_height = d.execute_script("return document.body.scrollHeight")
soup = BeautifulSoup(page, "html.parser")
for posts in soup.findAll('div',{"class":"content"}):
if(posts.find('p').text.encode('utf-8').find("Retweeted") == -1):
print(posts.find('span',{"class": "_timestamp js-short-timestamp"}).text)
print(posts.find('p').text.encode('utf-8'))
retweet = posts.find('button',{"class": "ProfileTweet-actionButton js-actionButton js-actionFavorite"})
#print(retweet.find('span',{"class":"ProfileTweet-actionCount"})["data-tweet-stat-count"])
print(retweet)
likes = posts.find('div',{"class":"ProfileTweet-action ProfileTweet-action--favorite js-toggleState"})
print(likes.find('span',{"class": "ProfileTweet-actionCountForPresentation"}))
numb = numb+1
if new_height == last_height:
break
if numb > 1:
break
if numb > 1:
break
last_height = new_height
d.close()
【问题讨论】:
-
现在这是技术的过度组合!您正在使用 selenium、urllib、requests 和 BeautifulSoup - 最终目标最容易通过 selenium 单独完成(而且,几乎只有通过它,您需要浏览器中的 js 解析器)。您当前的代码中有一个明显的错误 - 您将 urllib 请求所见的源传递给 bs,而不是 selenium。
-
我听说用beautifulsoup最容易刮掉文字,所以我用了那个
标签: python selenium web beautifulsoup screen-scraping