Cannot create soup from Selenium page_source? - python

I'm trying to extract some data from WhoScored.com.
I'm using selenium to get the page source and then BeautifulSoup to navigate the DOM, but can't get anything from it.
Code below:
#Importing the Libraries
from selenium import webdriver
from bs4 import BeautifulSoup #For scraping
#Open the Home Page of WhoScored.com
driver =webdriver.Firefox()
driver.get('https://www.whoscored.com/')
main_soup=BeautifulSoup(driver.page_source)
#print main_soup
result_tags=main_soup.select(".detailed-tournaments")
print result_tags
I get the result_tags as "[ ]". Can't figure out what is going wrong. I'm still a novice in Python. Please help.

Seems to be a case of broken parser. Couldn't get much details but below code works:
main_soup=BeautifulSoup(driver.page_source,'html.parser')
I'm using: Python 2.7.2
BeautifulSoup 4.4.1
Selenium Version: 2.53.1

Related

How to scrape all the home page text content of a website?

So I am new to webscraping, I want to scrape all the text content of only the home page.
this is my code, but it now working correctly.
from bs4 import BeautifulSoup
import requests
website_url = "http://www.traiteurcheminfaisant.com/"
ra = requests.get(website_url)
soup = BeautifulSoup(ra.text, "html.parser")
full_text = soup.find_all()
print(full_text)
When I print "full_text" it give me a lot of html content but not all, when I ctrl + f " traiteurcheminfaisant#hotmail.com" the email adress that is on the home page (footer)
is not found on full_text.
Thanks you for helping!
A quick glance at the website that you're attempting to scrape from makes me suspect that not all content is loaded when sending a simple get request via the requests module. In other words, it seems likely that some components on the site, such as the footer you mentioned, are being loaded asynchronously with Javascript.
If that is the case, you'll probably want to use some sort of automation tool to navigate to the page, wait for it to load and then parse the fully loaded source code. For this, the most common tool would be Selenium. It can be a bit tricky to set up the first time since you'll also need to install a separate webdriver for whatever browser you'd like to use. That said, the last time I set this up it was pretty easy. Here's a rough example of what this might look like for you (once you've got Selenium properly set up):
from bs4 import BeautifulSoup
from selenium import webdriver
import time
driver = webdriver.Firefox(executable_path='/your/path/to/geckodriver')
driver.get('http://www.traiteurcheminfaisant.com')
time.sleep(2)
source = driver.page_source
soup = BeautifulSoup(source, 'html.parser')
full_text = soup.find_all()
print(full_text)
I haven't used BeatifulSoup before, but try using urlopen instead. This will store the webpage as a string, which you can use to find the email.
from urllib.request import urlopen
try:
response = urlopen("http://www.traiteurcheminfaisant.com")
html = response.read().decode(encoding = "UTF8", errors='ignore')
print(html.find("traiteurcheminfaisant#hotmail.com"))
except:
print("Cannot open webpage")

How to fix Python requests/BeautifulSoup response from database

I am new to web scraping/coding, and I am trying to use Python requests/BeautifulSoup to parse through the html code in order to get some physical and chemical properties.
For some reason, although I have used the following script for other websites successfully, BeautifulSoup has only printed a few lines from the header and footer, and then pages of HTML code that doesn't really make sense. This is the code I have been using:
import requests
from bs4 import BeautifulSoup
url='https://comptox.epa.gov/dashboard/dsstoxdb/results?search=ammonia#properties'
response = requests.get(url).text
soup=BeautifulSoup(response,'lxml')
print(soup.prettify())
When I try to find the table or even a row, it gives no output. Is there something I haven't accounted for? Any help would be greatly appreciated!
It is present in one of the attributes. You can extract as follows (there is a lot more info there but I subset to physical properties
import requests
from bs4 import BeautifulSoup as bs
import json
url = "https://comptox.epa.gov/dashboard/dsstoxdb/results?search=ammonia#properties"
r = requests.get(url)
soup = bs(r.content, 'lxml')
soup.select_one('[data-result]')['data-result']
data = json.loads(soup.select_one('[data-result]')['data-result'])
properties = data['physprop']
print(properties)
It's pretty common that if a page is populated by JavaScript after you load it requests and BeautifulSoup will not process the page correctly. The best thing to do is likely switch to the selenium module which allows your program to dynamically access the page and interact with elements. After loading (and maybe clicking on a couple elements) you can feed the HTML to BeautifulSoup and process it how you wish. The basic framework I recommend you start with would look like:
from selenium import webdriver
browser = webdriver.Chrome() # You'll need to download drivers from link above
browser.implicitly_wait(10) # probably unnecessary, just makes sure all pages you visit fully load
browser.get('https://stips.co.il/explore')
while True:
input('Press Enter to print HTML')
HTML = browser.page_source
print(HTML)
Just click around in the browser and when you want to see if the HTML is correct, click back to your prompt and press ENTER. This is how you would locate elements automatically, so you don't have to manually interact with the page every time

XPATH works in Chrome, but not in Scrapy

I tried to scrape a page. Sorry, I can't disclose the link because of my job's non-disclosure agreement.
print response.xpath('//tr')
But it's weird, the XPATH only works on Chrome Dev Tools, but not on Scrapy. I checked the scraped HTML via response.body, and the HTML is normal.
Found the answer. It turns out the HTML is broken and Scrapy can't fix it on its own, so it needs Beautiful Soup help. I do it like this:
from scrapy.selector import Selector
from bs4 import BeautifulSoup
fixed_html = str(BeautifulSoup(response.body, "lxml"))
print Selector(text=fixed_html).xpath('//*')

Parsing HTML Content using BeautifulSoup & Selenium

from selenium import webdriver
from selenium.webdriver.support.ui import Select
from bs4 import BeautifulSoup
import csv
import requests
import re
driver2 = webdriver.Chrome()
driver2.get("http://www.squawka.com/match-results?ctl=10_s2015")
soup=BeautifulSoup(driver2.page_source)
print soup
driver2.quit()
I'm trying to get the HREF of every "td", "Class":"Match Centre" and I need to use selenium to navigate through the pages but im struggling to incorporate the two so I can change the menu options and navigate through the different pages while feeding the links into my other code.
I've researched and tried ('inner-html') and the page.source currently in the code, but it doesn't get any of the web links I need.
Does anyone have a solution to get these links and navigate on the page. Could there be a way to get the XML of this page to get all the links?
Not sure why would you need BeautifulSoup (BS) here. Selenium alone is capable of locating elements and navigating through links on a page. For example, to get all the links to the match details page you can do as follow :
>>> matches = driver.find_elements_by_xpath("//td[#class='match-centre']/a")
>>> print [match.get_attribute("href") for match in matches]
As for navigating through the pages, you can use the following XPath :
//span[contains(#class,'page-numbers')]/following-sibling::a[1]
The above XPath finds link to the next page. To navigate through all the pages, you can try using a while loop; while the link to the next page is found :
perform a click action on the link,
grab all the href from current page,
locate the next page link.

How to scrape Instagram with BeautifulSoup

I want to scrape pictures from a public Instagram account. I'm pretty familiar with bs4 so I started with that. Using the element inspector on Chrome, I noted the pictures are in an unordered list and li has class 'photo', so I figure, what the hell -- can't be that hard to scrape with findAll, right?
Wrong: it doesn't return anything (code below) and I soon notice that the code shown in element inspector and the code that I drew from requests were not the same AKA no unordered list in the code I pulled from requests.
Any idea how I can get the code that shows up in element inspector?
Just for the record, this was my code to start, which didn't work because the unordered list was not there:
from bs4 import BeautifulSoup
import requests
import re
r = requests.get('http://instagram.com/umnpics/')
soup = BeautifulSoup(r.text)
for x in soup.findAll('li', {'class':'photo'}):
print x
Thank you for your help.
If you look at the source code for the page, you'll see that some javascript generates the webpage. What you see in the element browser is the webpage after the script has been run, and beautifulsoup just gets the html file. In order to parse the rendered webpage you'll need to use something like Selenium to render the webpage for you.
So, for example, this is how it would look with Selenium:
from bs4 import BeautifulSoup
import selenium.webdriver as webdriver
url = 'http://instagram.com/umnpics/'
driver = webdriver.Firefox()
driver.get(url)
soup = BeautifulSoup(driver.page_source)
for x in soup.findAll('li', {'class':'photo'}):
print x
Now the soup should be what you are expecting.

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