使用Beautiful Soup来收集一个人在Quora上回答的所有问题



我将如何对漂亮的汤进行编程,以收集特定用户回答的所有问题?

输入:
作者的URL
示例:https://www.quora.com/profile/AUTHOR/answers)

输出:
第1列:作者回答的问题
示例:"Lorem Ipsum问题">

第2列:已回答问题的URL
示例:https://www.quora.com/lorem-ipsum-question

第3列:已回答问题的URL
示例:https://www.quora.com/lorem-ipsum-question

此脚本将打印页面上找到的所有答案/url。还有一个无限滚动,它向https://www.quora.com/graphql/gql_para_POST?q=UserProfileAnswersMostRecent_RecentAnswers_Query发出POST请求,但我无法从中获取数据(您可以在Developer tools->network选项卡中看到它(:

import re
import json
import requests

url = 'https://www.quora.com/profile/Nana-Bello-Shehu/answers'
html_data = requests.get(url).text
d = re.findall(r'window.ansFrontendGlobals.data.inlineQueryResults.results[".*?"] = ("{.*}");', html_data)[-1]
d = json.loads(json.loads(d));
for e in d['data']['user']['recentPublicAndPinnedAnswersConnection']['edges']:
if e['node']['__typename'] != 'Answer':
continue
q = json.loads(e['node']['question']['title'])
title = q['sections'][0]['spans'][0]['text']
u = 'https://www.quora.com' + e['node']['question']['url']
print('{:<90} {}'.format(title, u))

打印:

Do pictures speak louder than words?                                                       https://www.quora.com/Do-pictures-speak-louder-than-words
Does true love exist?                                                                      https://www.quora.com/Does-true-love-exist-8
What picture made your blood boil?                                                         https://www.quora.com/What-picture-made-your-blood-boil
What are the before and after pics of people who are drug addicts for several years?       https://www.quora.com/What-are-the-before-and-after-pics-of-people-who-are-drug-addicts-for-several-years
What was the funniest thing you saw/heard today?                                           https://www.quora.com/What-was-the-funniest-thing-you-saw-heard-today
Are there any truly selfless acts, motives, or people?                                     https://www.quora.com/Are-there-any-truly-selfless-acts-motives-or-people
Which famous person in history who is idolized, was actually a horrible person?            https://www.quora.com/Which-famous-person-in-history-who-is-idolized-was-actually-a-horrible-person
What is something that you read recently and is worth sharing?                             https://www.quora.com/What-is-something-that-you-read-recently-and-is-worth-sharing
How do I get the attention of my crush?                                                    https://www.quora.com/How-do-I-get-the-attention-of-my-crush
What are some heart touching stories of best friends?                                      https://www.quora.com/What-are-some-heart-touching-stories-of-best-friends

我认为最简单的方法是使用硒:

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = webdriver.Firefox(executable_path='c:/program/geckodriver.exe')
import time
url = 'https://www.quora.com/profile/Nana-Bello-Shehu/answers'
driver.get(url)
SCROLL_TIME = 2

last_height = driver.execute_script("return document.body.scrollHeight")
while True:
driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")

time.sleep(SCROLL_TIME)

new_height = driver.execute_script("return document.body.scrollHeight")
if new_height == last_height:
break
last_height = new_height
qbox = driver.find_elements_by_css_selector('.qu-pb--medium')
for qb in qbox:
print(qb.find_element_by_css_selector('span.qu-userSelect--text').text)
print('https://www.quora.com' + qb.find_element_by_css_selector('a.q-box.qu-cursor--pointer.qu-hover--textDecoration--underline').get_attribute('href'))
print('n')

输出:

Do pictures speak louder than words?
https://www.quora.comhttps://www.quora.com/profile/Nana-Bello-Shehu

Does true love exist?
https://www.quora.comhttps://www.quora.com/profile/Nana-Bello-Shehu

What picture made your blood boil?
https://www.quora.comhttps://www.quora.com/profile/Nana-Bello-Shehu

What are the before and after pics of people who are drug addicts for several years?
https://www.quora.comhttps://www.quora.com/profile/Nana-Bello-Shehu

What was the funniest thing you saw/heard today?
https://www.quora.comhttps://www.quora.com/profile/Nana-Bello-Shehu

Are there any truly selfless acts, motives, or people?
https://www.quora.comhttps://www.quora.com/profile/Nana-Bello-Shehu

等等…

这个脚本滚动到页面的末尾并复制所有问题。您可以尝试设置较低的SCROLL_TIME以使脚本更快,但有时脚本会在页面结束前结束,滚动时间更短。

注意:

  1. 你需要硒
  2. 你需要Firefox
  3. 您需要geckodriver,现在脚本将其从c:/program/geckodriver.exe导入,因此如果将geckodrive添加到其他路径,则需要更改可执行路径

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