BeautifulSoup4: Missing Parsed Table Data - python

I'm trying to extract the Earnings Per Share data through BeautifulSoup 4 from this page.
When I parse the data, the table information is missing using the default, lxml and HTML 5 parsers. I believe this has something to do with Javascript and I have been trying to implement PyV8 to transform the script into readable HTML for BS4. The problem is I don't know where to go from here.
Do you know if this is in fact my issue? I have been reading many posts and it's been a very big headache for me today. Below is a quick example. The financeWrap includes the table information, but beautifulSoup shows that it is empty.
import requests
from bs4 import BeautifulSoup
url = "http://financials.morningstar.com/ratios/r.html?t=AAPL&region=usa&culture=en-US"
response = requests.get(url)
soup_key_ratios = bs(response.content, 'html5lib')
financial_tables = soup_key_ratios.find("div", {"id":"financeWrap"})
print financial_tables
# Output: <div id="financeWrap">
# </div>

The issue is that you're trying to get data that is coming in through Ajax on the website. If you go to the link you provided, and looked at the source via the browser, you'll see that there should be no content with the data.
However, if you use a console manager, such as Firebug, you will see that there are Ajax requests made to the following URL, which is something you can parse via beautifulsoup (perhaps - I haven't tried it or looked at the structure of the data).
Keep in mind that this is quite possibly against the website's ToS.

Related

How can i fix the find_all error while web scraping?

I am kinda a newbie in data world. So i tried to use bs4 and requests to scrap data from trending youtube videos. I have tried using soup.findall() method. To see if it works i displayed it. But it gives me an empty list. Can you help me fix it? Click here to see the spesific part of the html code.
from bs4 import BeautifulSoup
import requests
r = requests.get("https://www.youtube.com/feed/explore")
soup = BeautifulSoup(r.content,"lxml")
soup.prettify()
trendings = soup.find_all("ytd-video-renderer",attrs = {"class":"style-scope ytd-expanded-
shelf-contents-renderer"})
print(trending)
This webpage is dynamic and contains scripts to load data. Whenever you make a request using requests.get("https://www.youtube.com/feed/explore"), it loads the initial source code file that only contains information like head, meta, etc, and scripts. In a real-world scenario, you will have to wait until scripts load data from the server. BeautifulSoup does not catch the interactions with DOM via JavaScript. That's why soup.find_all("ytd-video-renderer",attrs = {"class":"style-scope ytd-expanded-shelf-contents-renderer"}) gives you empty list as there is no ytd-video-renderer tag or style-scope ytd-expanded-shelf-contents-renderer class.
For dynamic webpages, I think you should use Selenium (or maybe Scrapy).
For Youtube, you can use it's API as well.

Webscraping table with multiple pages using BeautifulSoup

I'm trying to scrape this webpage https://www.whoscored.com/Statistics using BeautifulSoup in order to obtain all the information of the player statistics table. I'm having lot of difficulties and was wondering if anyone would be able to help me.
url = 'https://www.whoscored.com/Statistics'
html = requests.get(url).content
soup = BeautifulSoup(html, "lxml")
text = [element.text for element in soup.find_all('div' {'id':"statistics-table-summary"})]
My problem lies in the fact that I don't know what the correct tag is to obtain that table. Also the table has several pages and I would like to scrape every single one. The only indication I've seen of a change of page in the table is the number in the code below:
<div id="statistics-table-summary" class="" data-fwsc="11">
It looks to me like that site loads their data in using Javascript. In order to grab the data, you'll have to mimic how a browser loads a page; the requests library isn't enough. I'd recommend taking a look at a tool like Selenium, which uses a "robotic browser" to load the page. After the page is loaded, you can then use BeautifulSoup to retrieve the data you need.
Here's a link to a helpful tutorial from RealPython.
Good luck!

BeautifulSoup4 output with JS Filters

Newbie here. I'm trying to scrape some sports statistics off a website using BeautifulSoup4. The script below does output a table, but it's not actually the specific data that appears in the browser (the data that appears in browser is the data I'm after - goalscorer data for a season, not all time records).
#import libraries
from urllib.request import urlopen
from bs4 import BeautifulSoup
import requests
#specify the url
stat_page = 'https://www.premierleague.com/stats/top/players/goals?se=79'
# query the website and return the html to the variable ‘page’
page = urlopen(stat_page)
#parse the html using beautiful soup and store in variable `soup`
soup = BeautifulSoup(page, 'html.parser')
# Take out the <div> of name and get its value
stats = soup.find('tbody', attrs={'class': 'statsTableContainer'})
name = stats.text.strip()
print(name)
It appears there is some filtering of data going on behind the scenes but I am not sure how I can filter the output with BeautifulSoup4. It would appear there is some Javascript filtering happening on top of the HTML.
I have tried to identify what this specific filter is, and it appears the filtering is done here.
<div class="current" data-dropdown-current="FOOTBALL_COMPSEASON" role="button" tabindex="0" aria-expanded="false" aria-labelledby="dd-FOOTBALL_COMPSEASON" data-listen-keypress="true" data-listen-click="true">2017/18</div>
I've had a read of the below link, but I'm not entirely sure how to apply it to my answer (again, beginner here).
Having problems understanding BeautifulSoup filtering
I've tried installing, importing and applying the different parsers, but I always get the same error (Couldn't find a Tree Builder). Any suggestions on how I can pull data off a website that appears to be using a JS filter?
Thanks.
In these cases, it's usually useful to track the network requests using your browser's developer tools, since the data is usually retrieved using AJAX and then displayed in the browser with JS.
In this case, it looks like the data you're looking for can be accessed at:
https://footballapi.pulselive.com/football/stats/ranked/players/goals?page=0&pageSize=20&compSeasons=79&comps=1&compCodeForActivePlayer=EN_PR&altIds=true
It has a standard JSON format so you should be able to parse and extract the data with minimal effort.
However, note that this endpoint requieres the Origin HTTP header to be set to https://www.premierleague.com in order for it to serve your request.

BeautifulSoup4 fails to parse multiple tables

I'd like to systematically scrape the privacy breach data found here which is directly embedded in the HTML of the page. I've found various links on StackOverflow about missing HTML and not being able to scrape a table using BS4. Both of these threads seem very similar to the issue that I'm having, however i'm having a difficult time reconciling the differences.
Here's my problem: When I pull the HTML using either Requests or urllib (python 3.6) the second table does not appear in the soup. The second link above details that this can occur if the table/data is added in after the page loads using javascript. However when I examine the page source the data is all there, so that doesn't seem to be the issue. A snippet of my code is below.
url = 'https://www.privacyrights.org/data-breach/new?title=&page=1'
r = requests.get(url, verify=False)
soupy = BeautifulSoup(r.content, 'html5lib')
print(len(soupy.find_all('table')))
# only finds 1 table, there should be 2
This code snippet fails to find the table with the actual data in it. I've tried lmxl, html5lib, and html.parse parsers. I've tried urllib and Requests packages to pull down the page.
Why can't requests + BS4 find the table that I'm looking for?
Looking at the HTML delivered from the URL it appears that there only IS one table in it, which is precisely why Beautiful Soup can't find two!

Python Scraping fb comments from a website

I have been trying to scrape facebook comments using Beautiful Soup on the below website pages.
import BeautifulSoup
import urllib2
import re
url = 'http://techcrunch.com/2012/05/15/facebook-lightbox/'
fd = urllib2.urlopen(url)
soup = BeautifulSoup.BeautifulSoup(fd)
fb_comment = soup("div", {"class":"postText"}).find(text=True)
print fb_comment
The output is a null set. However, I can clearly see the facebook comment is within those above tags in the inspect element of the techcrunch site (I am little new to Python and was wondering if the approach is correct and where I am going wrong?)
Like Christopher and Thiefmaster: it is all because of javascript.
But, if you really need that information, you can still retrieve it thanks to Selenium on http://seleniumhq.org then use beautifulsoup on this output.
Facebook comments are loaded dynamically using AJAX. You can scrape the original page to retrieve this:
<fb:comments href="http://techcrunch.com/2012/05/15/facebook-lightbox/" num_posts="25" width="630"></fb:comments>
After that you need to send a request to some Facebook API that will give you the comments for the URL in that tag.
The parts of the page you are looking for are not included in the source file. Use a browser and you can see this for yourself by opening the page source.
You will need to use something like pywebkitgtk to have the javascript executed before passing the document to BeautifulSoup

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