BeautifulSoup - How to extract info from deeper layers of html - python

I'm using BeautifulSoup to scrape some real estate data and having trouble getting to what I need which are several href links that are deep in the .
http://www.mls.com/Search/New-York.mvc
To make the code stable, I've started with a parent that is two steps above my target that I need:
area_links = soup.findAll('ul', class_="sub-section-list", limit=2)
now I have a ResultSet element but have failed in getting anything but errors out of it.
I've tried a number of arguments using area_links.findAll and findAllNext
I need to extract the links to the different metro areas so I can then dig into those.

I prefer concise css selectors to target the a tags of interest:
import requests
from bs4 import BeautifulSoup as bs
r = requests.get('http://www.mls.com/Search/New-York.mvc')
soup = bs(r.content, 'lxml')
links = ['http://www.mls.com' + i['href'] for i in soup.select('.sub-section-list a')]
print(links)
For yours, you need to loop the returned list and find the child a tags and extract the href attributes:
import requests
from bs4 import BeautifulSoup as bs
r = requests.get('http://www.mls.com/Search/New-York.mvc')
soup = bs(r.content, 'lxml')
area_links = soup.find_all('ul', class_="sub-section-list", limit=2)
for area in area_links:
print(['http://www.mls.com' + i['href'] for i in area.find_all('a')])

Related

Web scraping IMDB with Python's Beautiful Soup

I am trying to parse this page "https://www.imdb.com/title/tt0068112/?ref_=fn_al_tt_1", but I can't find the href that I need (href="/title/tt0068112/episodes?ref_=tt_eps_sm").
I tried with this code:
url="https://www.imdb.com/title/tt0068112/?ref_=fn_al_tt_1"
page(requests.get(url)
soup=BeautifulSoup(page.content,"html.parser")
for a in soup.find_all('a'):
print(a['href'])
What's wrong with this? I also tried to check "manually" with print(soup.prettify()) but it seems that that link is hidden or something like that.
You can get the page html with requests, the href item is in there, no need for special apis. I tried this and it worked:
import requests
from bs4 import BeautifulSoup
page = requests.get("https://www.imdb.com/title/tt0068112/?ref_=fn_al_tt_1")
soup = BeautifulSoup(page.content, "html.parser")
scooby_link = ""
for item in soup.findAll("a", href="/title/tt0068112/episodes?ref_=tt_eps_sm"):
print(item["href"])
scooby_link = "https://www.imdb.com" + "/title/tt0068112/episodes?ref_=tt_eps_sm"
print(scooby_link)
I'm assuming you also wanted to save the link to a variable for further scraping so I did that as well. 🙂
To get the link with Episodes you can use next example:
import requests
from bs4 import BeautifulSoup
url = "https://www.imdb.com/title/tt0068112/?ref_=fn_al_tt_1"
soup = BeautifulSoup(requests.get(url).content, "html.parser")
print(soup.select_one("a:-soup-contains(Episodes)")["href"])
Prints:
/title/tt0068112/episodes?ref_=tt_eps_sm

How to extract url/links that are contents of a webpage with BeautifulSoup

So the website I am using is : https://keithgalli.github.io/web-scraping/webpage.html and I want to extract all the social media links on the webpage.
import requests
from bs4 import BeautifulSoup as bs
r = requests.get('https://keithgalli.github.io/web-scraping/webpage.html')
soup = bs(r.content)
links = soup.find_all('a', {'class':'socials'})
actual_links = [link['href'] for link in links]
I get an error, specifically:
KeyError: 'href'
For a different example and webpage, I was able to use the same code to extract the webpage link but for some reason this time it is not working and I don't know why.
I also tried to see what the problem was specifically and it appears that
links is a nested array where links[0] outputs the entire content of the ul tag that has class=socials so its not iterable so to speak since the first element contains all the links rather than having each social li tag be seperate elements inside links
Here is the solution using css selectors:
import requests
from bs4 import BeautifulSoup as bs
r = requests.get('https://keithgalli.github.io/web-scraping/webpage.html')
soup = bs(r.content, 'lxml')
links = soup.select('ul.socials li a')
actual_links = [link['href'] for link in links]
print(actual_links)
Output:
['https://www.instagram.com/keithgalli/', 'https://twitter.com/keithgalli', 'https://www.linkedin.com/in/keithgalli/', 'https://www.tiktok.com/#keithgalli']
Why not try something like:
import requests
from bs4 import BeautifulSoup as bs
r = requests.get('https://keithgalli.github.io/web-
scraping/webpage.html')
soup = bs(r.content)
links = soup.find_all('a', {'class':'socials'})
actual_links = [link['href'] for link in links if 'href' in link.keys()]
After gaining some new information from you and visiting the webpage, I've realized that you did the following mistake:
The socials class is never used in any a-element and thus you won't find any such in your script. Instead you should look for the li-elements with the class "social".
Thus your code should look like:
import requests
from bs4 import BeautifulSoup as bs
r = requests.get('https://keithgalli.github.io/web-
scraping/webpage.html')
soup = bs(r.content, "lxml")
link_list_items = soup.find_all('li', {'class':'social'})
links = [item.find('a').get('href') for item in link_list_items]
print(links)

How do I selectively scrape hrefs from div tags?

I'm trying to scrape URLS from a news website. Specifically, they are the URLs of news articles listed in the search results for a specific search term.
I'm new to BeautifulSoup, and I don't know how to selectively scrape just the hrefs that take me to an article (when I try to scrape for children hrefs in div tags, I just get an empty set, and when I scrape a tags, I get way more URLs than I want.
Any thoughts?
Here's a link to the webpage:
https://www.thenational.ae/search?q=aramco
Here's the code I'm using.
import requests, random, re
from bs4 import BeautifulSoup as bs
url = "https://www.thenational.ae/search?q=aramco"
webpage = requests.get(url)
soup = bs(webpage.text, "html.parser")
for link in soup.find_all('h1'):
print(link.get('href'))
You need to understand the structure of the HTML. From the structure, you can see that the hrefs you need are childrens of same div with class small-article-desc. So basically you do it this way:
import requests, random, re
from bs4 import BeautifulSoup as bs
url = "https://www.thenational.ae/search?q=aramco"
webpage = requests.get(url)
soup = bs(webpage.text, "html.parser")
for div in soup.find_all('div', {"class": "small-article-desc"}):
a = div.find_all('a')
print(a[0].get('href'))

Exporting data from HTML to Excel

i just started programming.
I have the task to extract data from a HTML page to Excel.
Using Python 3.7.
My Problem is, that i have a website, whith more urls inside.
Behind these urls again more urls.
I need the data behind the third url.
My first Problem would be, how i can dictate the programm to choose only specific links from an ul rather then every ul on the page?
from bs4 import BeautifulSoup
import urllib
import requests
import re
page = urllib.request.urlopen("file").read()
soup = BeautifulSoup(page, "html.parser")
print(soup.prettify())
for link in soup.find_all("a", href=re.compile("katalog_")):
links= link.get("href")
if "katalog" in links:
for link in soup.find_all("a", href=re.compile("alle_")):
links = link.get("href")
print(soup.get_text())
There are many ways, one is to use "find_all" and try to be specific on the tags like "a" just like you did. If that's the only option, then use regular expression with your output. You can refer to this thread: Python BeautifulSoup Extract specific URLs. Also please show us either the link, or html structure of the links you want to extract. We would like to see the differences between the URLs.
PS: Sorry I can't make comments because of <50 reputation or I would have.
Updated answer based on understanding:
from bs4 import BeautifulSoup
import urllib
import requests
page = urllib.request.urlopen("https://www.bsi.bund.de/DE/Themen/ITGrundschutz/ITGrundschutzKompendium/itgrundschutzKompendium_node.html").read()
soup = BeautifulSoup(page, "html.parser")
for firstlink in soup.find_all("a",{"class":"RichTextIntLink NavNode"}):
firstlinks = firstlink.get("href")
if "bausteine" in firstlinks:
bausteinelinks = "https://www.bsi.bund.de/" + str(firstlinks.split(';')[0])
response = urllib.request.urlopen(bausteinelinks).read()
soup = BeautifulSoup(response, 'html.parser')
secondlink = "https://www.bsi.bund.de/" + str(((soup.find("a",{"class":"RichTextIntLink Basepage"})["href"]).split(';'))[0])
res = urllib.request.urlopen(secondlink).read()
soup = BeautifulSoup(res, 'html.parser')
listoftext = soup.find_all("div",{"id":"content"})
for text in listoftext:
print (text.text)

BeautifulSoup, findAll after findAll?

I'm pretty new to Python and mainly need it for getting information from websites.
Here I tried to get the short headlines from the bottom of the website, but cant quite get them.
from bfs4 import BeautifulSoup
import requests
url = "http://some-website"
r = requests.get(url)
soup = BeautifulSoup(r.content, "html.parser")
nachrichten = soup.findAll('ul', {'class':'list'})
Now I would need another findAll to get all the links/a from the var "nachrichten", but how can I do this ?
Use a css selector with select if you want all the links in a single list:
anchors = soup.select('ul.list a')
If you want individual lists:
anchors = [ ul.find_all(a) for a in soup.find_all('ul', {'class':'list'})]
Also if you want the hrefs you can make sure you only find the anchors with href attributes and extract:
hrefs = [a["href"] for a in soup.select('ul.list a[href]')]
With find_all set href=True i.e ul.find_all(a, href=True) .
from bs4 import BeautifulSoup
import requests
url = "http://www.n-tv.de/ticker/"
r = requests.get(url)
soup = BeautifulSoup(r.content, "html.parser")
nachrichten = soup.findAll('ul', {'class':'list'})
links = []
for ul in nachrichten:
links.extend(ul.findAll('a'))
print len(links)
Hope this solves your problem and I think the import is bs4. I never herd of bfs4

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