Python-Requests使用BS4问题刮取YouTube描述

时间：2018-01-03 00:48:21

标签： python beautifulsoup siblings

我正在尝试同时获取图片中显示的文本和链接。但我只能通过兄弟姐妹和之后的链接获取文本。我需要他们像图像一样走到一起。我尝试使用br.next_element但它没有抓取a-links。我错过了什么？

import requests
from bs4 import BeautifulSoup
url_id = 'aM7aW0G58CI'

s = requests.Session()
r = s.get('https://www.youtube.com/watch?v='+url_id)
html = r.text
soup = BeautifulSoup(html, 'lxml')
for i in soup.find_all('p', id='eow-description'):
    for br in i.find_all('br'):
        next_sib = br.next_sibling
        print(next_sib)

for i in soup.find_all('p', id='eow-description'):
    for a in i.find_all('a'):
        print(a.text)

这是我得到的输出。我没有得到下面的截图显示的内容。

输出：

Special shout to 
Wanna support what we do? Livestream at 2PM PT!: 
It Wasn’t Me, I Swear!: 
TheDeFrancoFam Vlog: 
———————————— 
CATCH UP ON THIS WEEK’S SHOWS: 
<br/>
Why People Are Freaking Out About The Trump NFL Boycott and Anthony Weiner Going to Jail…: 
WOW! Dirty Advertising Exposed And Major Backlash Following Unexpected Compromise…: 
Why Trump's "HUGE Failure" Is A Massive Loss For His Enemies and A Shocking Change To Women's Rights: 
DISGUSTING! The Horrible Truth About Belle Gibson Exposed, Controversial Video Blows Up, and More: 
<br/>
————————————
GET SOME GEAR: 
————————————
FACEBOOK: 
TWITTER: 
INSTAGRAM: 
SNAPCHAT: TheDeFrancoFam
REDDIT: 
ITUNES: 
GOOGLE PLAY: 
————————————
Edited by:
James Girardier - 
Jason Mayer - 
<br/>
Produced by:
Amanda Morones - 
<br/>
Motion Graphics Artist:
Brian Borst - 
<br/>
P.O. BOX
Attn: Philip DeFranco
16350 Ventura Blvd
Ste D #542
Encino, CA 91436
http://DKPhil.com
http://DeFrancoElite.com
https://youtu.be/fFxDbYE06zU
https://youtu.be/kR7DquGe4vY
https://youtu.be/qdWUQGHtyPk
https://youtu.be/CWlUs1-7KN4
https://youtu.be/kUWt-oipvOY
https://youtu.be/XVsTh4zxKNo
https://teespring.com/stores/defranco...
http://on.fb.me/mqpRW7
http://Twitter.com/PhillyD
https://instagram.com/phillydefranco/
https://www.reddit.com/r/DeFranco
http://DeFrancoMistakes.com
http://mistakeswithdefranco.com
https://twitter.com/jamesgirardier
https://www.instagram.com/jayjaymay/
https://twitter.com/MandaOhDang
https://twitter.com/brianjborst

enter image description here

3 个答案:

答案 0 :(得分：1)

使用children并检查tag名称（child.name）我做了

import requests
from bs4 import BeautifulSoup

url_id = 'aM7aW0G58CI'

s = requests.Session()
r = s.get('https://www.youtube.com/watch?v='+url_id)
soup = BeautifulSoup(r.text, 'lxml')

# to concatenate <br> 
br = ''

for p in soup.find_all('p', id='eow-description'):
    for child in p.children:
        if child.name == 'a':
            #print(' a:', child.text)
            print(br, child.text)
            br = '' # reset br
        elif child.name == 'br':
            if child.next_sibling.name != 'br': # skip <br/> ?
                #print('br:', child.next_sibling)
                br += str(child.next_sibling)
        #else:
        #    print(child.name, child)

我明白了：

Special shout to  http://DKPhil.com
Wanna support what we do? Livestream at 2PM PT!:  http://DeFrancoElite.com
It Wasn’t Me, I Swear!:  https://youtu.be/fFxDbYE06zU
TheDeFrancoFam Vlog:  https://youtu.be/kR7DquGe4vY
———————————— CATCH UP ON THIS WEEK’S SHOWS: Why People Are Freaking Out About The Trump NFL Boycott and Anthony Weiner Going to Jail…:  https://youtu.be/qdWUQGHtyPk
WOW! Dirty Advertising Exposed And Major Backlash Following Unexpected Compromise…:  https://youtu.be/CWlUs1-7KN4
Why Trump's "HUGE Failure" Is A Massive Loss For His Enemies and A Shocking Change To Women's Rights:  https://youtu.be/kUWt-oipvOY
DISGUSTING! The Horrible Truth About Belle Gibson Exposed, Controversial Video Blows Up, and More:  https://youtu.be/XVsTh4zxKNo
————————————GET SOME GEAR:  https://teespring.com/stores/defranco...
————————————FACEBOOK:  http://on.fb.me/mqpRW7
TWITTER:  http://Twitter.com/PhillyD
INSTAGRAM:  https://instagram.com/phillydefranco/
SNAPCHAT: TheDeFrancoFamREDDIT:  https://www.reddit.com/r/DeFranco
ITUNES:  http://DeFrancoMistakes.com
GOOGLE PLAY:  http://mistakeswithdefranco.com
————————————Edited by:James Girardier -  https://twitter.com/jamesgirardier
Jason Mayer -  https://www.instagram.com/jayjaymay/
Produced by:Amanda Morones -  https://twitter.com/MandaOhDang
Motion Graphics Artist:Brian Borst -  https://twitter.com/brianjborst

编辑：您可能需要使用

else:
    print(child.name, child)

获取PO BOX地址

答案 1 :(得分：1)

我找到了一个非常简单的方法：

for p in soup.find_all('p', id='eow-description'):
    print(p.get_text('\n'))

现在唯一的问题是某些链接会被...

删除

你也可以使用youtube-dl python模块来获取youtube视频的描述。

答案 2 :(得分：1)

我已经找到了这种方式。

from bs4 import BeautifulSoup
import requests

url='https://www.youtube.com/watch?v=aM7aW0G58CI'

r = requests.get(url)

# now get video page and pull information from it
soup = BeautifulSoup(r.text, 'html.parser') 

data = soup.find('div',id='watch-description-text')

for tg in data.find('p'):
    p=tg
    if p.name==None:
        print(p,end="")
    else:
        if p.name=='a':
            print(p.get_text(),end="")
        elif p.name=='br':
            print()

通过这种方法，您将获得与YouTube视频说明中显示的内容完全相同的内容。

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