Scrape with BeautifulSoup from site that uses AJAX pagination using Python - python

I'm fairly new to coding and Python so I apologize if this is a silly question. I'd like a script that goes through all 19,000 search results pages and scrapes each page for all of the urls. I've got all of the scrapping working but can't figure out how to deal with the fact that the page uses AJAX to paginate. Usually I'd just make a loop with the url to capture each search result but that's not possible. Here's the page: http://www.heritage.org/research/all-research.aspx?nomobile&categories=report
This is the script I have so far:
with io.open('heritageURLs.txt', 'a', encoding='utf8') as logfile:
page = urllib2.urlopen("http://www.heritage.org/research/all-research.aspx?nomobile&categories=report")
soup = BeautifulSoup(page)
snippet = soup.find_all('a', attrs={'item-title'})
for a in snippet:
logfile.write ("http://www.heritage.org" + a.get('href') + "\n")
print "Done collecting urls"
Obviously, it scrapes the first page of results and nothing more.
And I have looked at a few related questions but none seem to use Python or at least not in a way that I can understand. Thank you in advance for your help.


For the sake of completeness, while you may try accessing the POST request and to find a way round to access to next page, like I suggested in my comment, if an alternative is possible, using Selenium will be quite easy to achieve what you want.
Here is a simple solution using Selenium for your question:
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from time import sleep
# uncomment if using Firefox web browser
driver = webdriver.Firefox()
# uncomment if using Phantomjs
#driver = webdriver.PhantomJS()
url = 'http://www.heritage.org/research/all-research.aspx?nomobile&categories=report'
driver.get(url)
# set initial page count
pages = 1
with open('heritageURLs.txt', 'w') as f:
while True:
try:
# sleep here to allow time for page load
sleep(5)
# grab the Next button if it exists
btn_next = driver.find_element_by_class_name('next')
# find all item-title a href and write to file
links = driver.find_elements_by_class_name('item-title')
print "Page: {} -- {} urls to write...".format(pages, len(links))
for link in links:
f.write(link.get_attribute('href')+'\n')
# Exit if no more Next button is found, ie. last page
if btn_next is None:
print "crawling completed."
exit(-1)
# otherwise click the Next button and repeat crawling the urls
pages += 1
btn_next.send_keys(Keys.RETURN)
# you should specify the exception here
except:
print "Error found, crawling stopped"
exit(-1)
Hope this helps.

Related

For Loops while using selenium for webscraping Python

I am attempting to web-scrape info off of the following website: https://www.axial.net/forum/companies/united-states-family-offices/
I am trying to scrape the description for each family office, so "https://www.axial.net/forum/companies/united-states-family-offices/"+insert_company_name" are the pages I need to scrape.
So I wrote the following code to test the program for just one page:
from bs4 import BeautifulSoup as soup
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = webdriver.Chrome('insert_path_here/chromedriver')
driver.get("https://network.axial.net/company/ansaco-llp")
page_source = driver.page_source
soup2 = soup(page_source,"html.parser")
soup2.findAll('axl-teaser-description')[0].text
This works for the single page, as long as the description doesn't have a "show full description" drop down button. I will save that for another question.
I wrote the following loop:
#Note: Lst2 has all the names for the companies. I made sure they match the webpage
lst3=[]
for key in lst2[1:]:
driver.get("https://network.axial.net/company/"+key.lower())
page_source = driver.page_source
for handle in driver.window_handles:
driver.switch_to.window(handle)
word_soup = soup(page_source,"html.parser")
if word_soup.findAll('axl-teaser-description') == []:
lst3.append('null')
else:
c = word_soup.findAll('axl-teaser-description')[0].text
lst3.append(c)
print(lst3)
When I run the loop, all of the values come out as "null", even the ones without "click for full description" buttons.
I edited the loop to instead print out "word_soup", and the page is different then if I had run it without a loop and does not have the description text.
I don't understand why a loop would cause that but apparently it does. Does anyone know how to fix this problem?

Found solution. pause the program for 3 seconds after driver.get:
import time
lst3=[]
for key in lst2[1:]:
driver.get("https://network.axial.net/company/"+key.lower())
time.sleep(3)
page_source = driver.page_source
word_soup = soup(page_source,"html.parser")
if word_soup.findAll('axl-teaser-description') == []:
lst3.append('null')
else:
c = word_soup.findAll('axl-teaser-description')[0].text
lst3.append(c)
print(lst3)

I see that the page uses javascript to generate the text meaning it doesn't show up in the page source, which is weird but ok. I don't quite understand why you're only iterating through and switching to all the instances of Selenium you have open, but you definitely won't find the description in the page source / beautifulsoup.
Honestly, I'd personally look for a better website if you can, otherwise, you'll have to try it with selenium which is inefficient and horrible.

"How to fix 'malformed URL' in Selenium web scraping

My problem is that I am attempting to scrape the titles of Netflix movies and shows from a website that lists them on 146 different pages, so I made a loop to try and capture data from all the pages, however, when using the loop it makes my URL malformed and I don't know how to fix it.
I have made sure the webdriver part of the code works, meaning if I type in the URL to the driver.get it gives me the information I need, however when using the loop it pops up multiple firefox windows and doesnt put any URL into any of the windows. I also added a time delay to try and see if it was changing the URL before it got used but it still didn't work.
from selenium import webdriver
import time
for i in range(1,3):
URL = "https://flixable.com/?min-rating=0&min-year=1920&max-year=2019&order=date&page={}"
newURL = URL.format(i)
print(newURL)
time.sleep(10)
driver = webdriver.Firefox()
driver.get('newURL')
titles = driver.find_elements_by_css_selector('#filterContainer > div > div > p > strong > a')
for post in titles:
print(post.text)

Can't get all titles from a list with Python WebScraping

I'm practicing web scraping with Python atm and I found a problem, I wanted to scrape one website that has a list of anime that I watched before but when I try to scrape it (via requests or selenium) it only gets around 30 of 110 anime names from the page.
Here is my code with selenium:
from selenium import webdriver
from bs4 import BeautifulSoup
browser = webdriver.Firefox()
browser.get("https://anilist.co/user/Agusmaris/animelist/Completed")
data = BeautifulSoup(browser.page_source, 'lxml')
for title in data.find_all(class_="title"):
print(title.getText())
And when I run it, the page source only shows up until an anime called 'Golden time' when there are like 70 or more left that are in the page.
Thanks
Edit: Code that works now thanks to 'supputuri':
from selenium import webdriver
from bs4 import BeautifulSoup
import time
driver = webdriver.Firefox()
driver.get("https://anilist.co/user/Agusmaris/animelist/Completed")
time.sleep(3)
footer = driver.find_element_by_css_selector("div.footer")
preY = 0
print(str(footer))
while footer.rect['y'] != preY:
preY = footer.rect['y']
footer.location_once_scrolled_into_view
print('loading')
html = driver.page_source
soup = BeautifulSoup(html, 'lxml')
for title in soup.find_all(class_="title"):
print(title.getText())
driver.close()
driver.quit()
ret = input()

Here is the solution.
Make sure to add import time
driver.get("https://anilist.co/user/Agusmaris/animelist/Completed")
time.sleep(3)
footer =driver.find_element_by_css_selector("div.footer")
preY =0
while footer.rect['y']!=preY:
preY = footer.rect['y']
footer.location_once_scrolled_into_view
time.sleep(1)
print(str(driver.page_source))
This will iterate until all the anime is loaded and then gets the page source.
Let us know if this was helpful.

So, this is the jist of what I get when I load the page source:
AniListwindow.al_token = 'E1lPa1kzYco5hbdwT3GAMg3OG0rj47Gy5kF0PUmH';Sorry, AniList requires Javascript.Please enable Javascript or http://outdatedbrowser.com>upgrade to a modern web browser.Sorry, AniList requires a modern browser.Please http://outdatedbrowser.com>upgrade to a newer web browser.
Since I know damn well that Javascript is enabled and my Chrome version is fully up to date, and the URL listed takes one to a nonsecure website to "download" a new version of your browser, I think this is a spam site. Not sure if you were aware of that when posting so I won't flag as such, but I wanted you and others who come across this to be aware.

Python and Selenium: I am automating web scraping among pages. How can I loop by Next button?

I already written several lines of codes to pull url from this website.
http://www.worldhospitaldirectory.com/United%20States/hospitals
code is below:
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
import time
import csv
driver = webdriver.Firefox()
driver.get('http://www.worldhospitaldirectory.com/United%20States/hospitals')
url = []
pagenbr = 1
while pagenbr <= 115:
current = driver.current_url
driver.get(current)
lks = driver.find_elements_by_xpath('//*[#href]')
for ii in lks:
link = ii.get_attribute('href')
if '/info' in link:
url.append(link)
print('page ' + str(pagenbr) + ' is done.')
if pagenbr <=114:
elm = driver.find_element_by_link_text('Next')
driver.implicitly_wait(10)
elm.click()
time.sleep(2)
pagenbr += 1
ls = list(set(url))
with open('US_GeneralHospital.csv', 'wb') as myfile:
wr = csv.writer(myfile,quoting=csv.QUOTE_ALL)
for u in ls:
wr.writerow([u])
And it worked very well to pull each individual links from this website.
But the problem is I need to change the page number I need to loop by myself every time.
I want to let this code upgrade to iterate by calculating how many time it need. Not by manually inputting.
Thank you very much.

This is bad idea to hardcode the number of pages in your script. Try just to click "Next" button while it is enabled:
from selenium.common.exceptions import NoSuchElementException
while True:
try:
# do whatever you need to do on page
driver.find_element_by_xpath('//li[not(#class="disabled")]/span[text()="Next"]').click()
except NoSuchElementException:
break
This should allow you to execute page scraping until the last page reached
Also note that using lines current = driver.current_url and driver.get(current) makes no sense at all, so you might skip them

Checking the clickability of an element in selenium using python

I've been trying to write a script which will give me all the links to the episodes present on this page :- http://www.funimation.com/shows/assassination-classroom/videos/episodes
As you can see that the links can be seen in 'Outer HTML', I used selenium and PhantomJS with python.
Link Example: http://www.funimation.com/shows/assassination-classroom/videos/official/karma-time
However, I can't seem to get my code right. I do have a basic Idea of what I want to do. Here's the process :-
1.) Copy the Outer HTML of the very first page and then save it as 'Source_html' file.
2.) Look for links inside this file.
3.) Move to the next page to see rest of the videos and their links.
4.) Repeat the step 2.
This is what my code looks like :
from selenium import webdriver
from selenium import selenium
from bs4 import BeautifulSoup
import time
# ---------------------------------------------------------------------------------------------
driver = webdriver.PhantomJS()
driver.get('http://www.funimation.com/shows/assassination-classroom/videos/episodes')
elem = driver.find_element_by_xpath("//*")
source_code = elem.get_attribute("outerHTML")
f = open('source_code.html', 'w')
f.write(source_code.encode('utf-8'))
f.close()
print 'Links On First Page Are : \n'
soup = BeautifulSoup('source_code.html')
subtitles = soup.find_all('div',{'class':'popup-heading'})
official = 'something'
for official in subtitles:
x = official.findAll('a')
for a in x:
print a['href']
sbtn = driver.find_element_by_link_text(">"):
print sbtn
print 'Entering The Loop Now'
for driver.find_element_by_link_text(">"):
sbtn.click()
time.sleep(3)
elem = driver.find_element_by_xpath("//*")
source_code = elem.get_attribute("outerHTML")
f = open('source_code1.html', 'w')
f.write(source_code.encode('utf-8'))
f.close()
Things I already know :-
soup = BeautifulSoup('source_code.html') won't work, because I need to open this file via python and feed it into BS after that. That I can manage.
That official variable isn't really doing anything. Just helping me start a loop.
for driver.find_element_by_link_text(">"):
Now, this is what I need to fix somehow. I'm not sure how to check if this thing is still clickable or not. If yes, then proceed to next page, get the links, click this again to go to page 3 and repeat the process.
Any help would be appreciated.

You don't need to use BeautifulSoup here at all. Just grab all the links via selenium. Proceed to next page only if the > link is visible. Here is the complete implementation including gathering the links, necessary waits. It should work for any page count:
import time
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
driver = webdriver.PhantomJS()
driver.get("http://www.funimation.com/shows/assassination-classroom/videos/episodes")
wait = WebDriverWait(driver, 10)
links = []
while True:
# wait for the page to load
wait.until(EC.visibility_of_element_located((By.CSS_SELECTOR, "a.item-title")))
# wait until the loading circle becomes invisible
wait.until(EC.invisibility_of_element_located((By.ID, "loadingCircle")))
links.extend([link.get_attribute("href") for link in driver.find_elements_by_css_selector("a.item-title")])
print("Parsing page number #" + driver.find_element_by_css_selector("a.jp-current").text)
# click next
next_link = driver.find_element_by_css_selector("a.next")
if not next_link.is_displayed():
break
next_link.click()
time.sleep(1) # hardcoded delay
print(len(links))
print(links)
For the mentioned in the question URL, it prints:
Parsing page number #1
Parsing page number #2
93
['http://www.funimation.com/shows/assassination-classroom/videos/official/assassination-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/assassination-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/assassination-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/baseball-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/baseball-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/baseball-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/karma-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/karma-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/karma-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/grown-up-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/grown-up-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/grown-up-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/assembly-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/assembly-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/assembly-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/test-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/test-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/test-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/school-trip-time1st-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/school-trip-time1st-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/school-trip-time1st-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/school-trip-time2nd-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/school-trip-time2nd-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/school-trip-time2nd-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/transfer-student-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/transfer-student-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/transfer-student-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/l-and-r-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/l-and-r-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/l-and-r-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/transfer-student-time2nd-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/transfer-student-time2nd-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/transfer-student-time2nd-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/ball-game-tournament-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/ball-game-tournament-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/ball-game-tournament-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/talent-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/talent-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/talent-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/vision-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/vision-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/vision-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/end-of-term-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/end-of-term-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/end-of-term-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/schools-out1st-term', 'http://www.funimation.com/shows/assassination-classroom/videos/official/schools-out1st-term', 'http://www.funimation.com/shows/assassination-classroom/videos/official/schools-out1st-term', 'http://www.funimation.com/shows/assassination-classroom/videos/official/island-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/island-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/island-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/action-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/action-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/action-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/pandemonium-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/pandemonium-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/pandemonium-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/karma-time2nd-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/karma-time2nd-period', 'http://www.funimation.com/shows/assassination-classroom/videos/official/karma-time2nd-period', 'http://www.funimation.com/shows/deadman-wonderland', 'http://www.funimation.com/shows/deadman-wonderland', 'http://www.funimation.com/shows/riddle-story-of-devil', 'http://www.funimation.com/shows/riddle-story-of-devil', 'http://www.funimation.com/shows/soul-eater', 'http://www.funimation.com/shows/soul-eater', 'http://www.funimation.com/shows/assassination-classroom/videos/official/xx-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/xx-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/xx-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/nagisa-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/nagisa-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/nagisa-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/summer-festival-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/summer-festival-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/summer-festival-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/kaede-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/kaede-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/kaede-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/itona-horibe-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/itona-horibe-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/itona-horibe-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/spinning-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/spinning-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/spinning-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/leader-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/leader-time', 'http://www.funimation.com/shows/assassination-classroom/videos/official/leader-time', 'http://www.funimation.com/shows/deadman-wonderland', 'http://www.funimation.com/shows/deadman-wonderland', 'http://www.funimation.com/shows/riddle-story-of-devil', 'http://www.funimation.com/shows/riddle-story-of-devil', 'http://www.funimation.com/shows/soul-eater', 'http://www.funimation.com/shows/soul-eater']

Basically, I use webelement.is_displayed() to check if it is clickable or not.
isLinkDisplay = driver.find_element_by_link_text(">").is_displayed()

Categories