Develop Reference

Unable to scrape emails from some websites maybe due to r.html.render() not working properly

I have some website links as samples for extracting any email available in their internal sites.
However, even I am trying to render any JS driven website via r.html.render() within scrape_email(url) method, some of the websites like arken.trygge.dk, gronnebakken.dk, dagtilbud.ballerup.dk/boernehuset-bispevangen etc. does not return any email which might be due to rendering issue.
I have attached the sample file for convenience of running
I dont want to use selenium as there can be thousands or millions of webpage I want to extract emails from.
So far this is my code:
import os
import time
import requests
from urllib.parse import urlparse, urljoin
from bs4 import BeautifulSoup
import re
from requests_html import HTMLSession
import pandas as pd
from gtts import gTTS
import winsound
# For convenience of seeing console output in the script
pd.options.display.max_colwidth = 180
#Get the start time of script execution
startTime = time.time()
#Paste file name inside ''
input_file_name = 'sample'
input_df = pd.read_excel(input_file_name+'.xlsx', engine='openpyxl')
input_df = input_df.dropna(how='all')
internal_urls = set()
emails = set()
total_urls_visited = 0
def is_valid(url):
"""
Checks whether `url` is a valid URL.
"""
parsed = urlparse(url)
return bool(parsed.netloc) and bool(parsed.scheme)
def get_internal_links(url):
"""
Returns all URLs that is found on `url` in which it belongs to the same website
"""
# all URLs of `url`
urls = set()
# domain name of the URL without the protocol
domain_name = urlparse(url).netloc
print("Domain name -- ",domain_name)
try:
soup = BeautifulSoup(requests.get(url, timeout=5).content, "html.parser")
for a_tag in soup.findAll("a"):
href = a_tag.attrs.get("href")
if href == "" or href is None:
# href empty tag
continue
# join the URL if it's relative (not absolute link)
href = urljoin(url, href)
parsed_href = urlparse(href)
# remove URL GET parameters, URL fragments, etc.
href = parsed_href.scheme + "://" + parsed_href.netloc + parsed_href.path
if not is_valid(href):
# not a valid URL
continue
if href in internal_urls:
# already in the set
continue
if parsed_href.netloc != domain_name:
# if the link is not of same domain pass
continue
if parsed_href.path.endswith((".csv",".xlsx",".txt", ".pdf", ".mp3", ".png", ".jpg", ".jpeg", ".svg", ".mov", ".js",".gif",".mp4",".avi",".flv",".wav")):
# Overlook site images,pdf and other file rather than webpages
continue
print(f"Internal link: {href}")
urls.add(href)
internal_urls.add(href)
return urls
except requests.exceptions.Timeout as err:
print("The website is not loading within 5 seconds... Continuing crawling the next one")
pass
except:
print("The website is unavailable. Continuing crawling the next one")
pass
def crawl(url, max_urls=30):
"""
Crawls a web page and extracts all links.
You'll find all links in `external_urls` and `internal_urls` global set variables.
params:
max_urls (int): number of max urls to crawl, default is 30.
"""
global total_urls_visited
total_urls_visited += 1
print(f"Crawling: {url}")
links = get_internal_links(url)
# for link in links:
# if total_urls_visited > max_urls:
# break
# crawl(link, max_urls=max_urls)
def scrape_email(url):
EMAIL_REGEX = r'\b[A-Za-z0-9._%+-]+#[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b'
# EMAIL_REGEX = r"""(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")#(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9]))\.){3}(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9])|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])"""
try:
# initiate an HTTP session
session = HTMLSession()
# get the HTTP Response
r = session.get(url, timeout=10)
# for JAVA-Script driven websites
r.html.render()
single_url_email = []
for re_match in re.finditer(EMAIL_REGEX, r.html.raw_html.decode()):
single_url_email.append(re_match.group().lower())
r.session.close()
return set(single_url_email)
except:
pass
def crawl_website_scrape_email(url, max_internal_url_no=20):
crawl(url,max_urls=max_internal_url_no)
each_url_emails = []
global internal_urls
global emails
for each_url in internal_urls:
each_url_emails.append(scrape_email(each_url))
URL_WITH_EMAILS={'main_url': url, 'emails':each_url_emails}
emails = {}
internal_urls = set()
return URL_WITH_EMAILS
def list_check(emails_list, email_match):
match_indexes = [i for i, s in enumerate(emails_list) if email_match in s]
return [emails_list[index] for index in match_indexes]
URL_WITH_EMAILS_LIST = [crawl_website_scrape_email(x) for x in input_df['Website'].values]
URL_WITH_EMAILS_DF = pd.DataFrame(data = URL_WITH_EMAILS_LIST)
URL_WITH_EMAILS_DF.to_excel(f"{input_file_name}_email-output.xlsx", index=False)
How can I solve the issue of not being able to scrape email from some of those above-mentioned and similar type of websites?
Is there also any way to detect and print strings if my get request is refused by bot detector or related protocols?
Also how can I make this code more robust?
Thank you in advance

Stuck Scraping with Beautifulsoup

So i'm trying to scrape a html webpage. It has novel chapters and i'm trying to get the text and store in text files to read offline. I don't have any previous experience with html or other things either. So the webpage I am trying to scrape is this. And the code i've been testing so far looks like this
`
import sys
import requests
import time
import re
from bs4 import BeautifulSoup
def browse_and_scrape(seed_url, page_number=1):
# Fetch the URL - We will be using this to append to images and info routes
url_pat = re.compile(r"(http://.*\.org)")
source_url = url_pat.search(seed_url).group(0)
# Page_number from the argument gets formatted in the URL & Fetched
formatted_url = seed_url.format(str(page_number))
# print(url_pat,source_url,formatted_url)
try:
html_text = requests.get(formatted_url).text
# print(html_text)
# Prepare the soup
soup = BeautifulSoup(html_text, "html.parser")
print(soup.find_all(id="chapterContent")[0]["style"])
print(f"Now Scraping - {formatted_url}")
# help = soup.find_all("div",class_="chapter-content text-normal")[0].text.strip().encode("ascii", "ignore").decode("ascii")
# for node in soup.findAll("div",class_="chapter-content text-normal"):
# print(node)
# print(''.join(node.findAll(text=True)))
# for node in soup.findAll("div"):
# # print(node)
# print(''.join(node.findAll(text=True)))
# help = soup.find_all("div",class_="chapter-content text-normal")[0]
# print(''.join(help.findAll(text=True)))
# print(help)
except Exception as e:
return e
return true
if __name__ == "__main__":
# seed_url = "http://books.toscrape.com/catalogue/page-{}.html"
seed_url = "http://wnmtl.org/chapter/324909-heavenly-wolf-valley.html"
# seed_url = "http://wnmtl.org/chapter/{}.html"
print("Web scraping has begun")
result = browse_and_scrape(seed_url)
if result == True:
print("Web scraping is now complete!")
else:
print(f"Oops, That doesn't seem right!!! - {result}")`
All the commented stuff are things i've been trying to rip the text from the tag. From my inspection of the developer console in the browser, all the text is in the tag with id of chapter content. My plan is to iteratively get the text, stuff it, get the link for the next page and repeat but i've been stuck for a bit now, any suggestions.

Instead of scraping each page, you can directly get the text from this API endpoint using requests.
https://api.mystorywave.com/story-wave-backend/api/v1/content/chapters/324909
The last item in the above API is the chapter ID (324909). You can navigate to chapters by giving in the chapter IDs.
The next and prev chapter IDs are present in the current chapter's API endpoint. Have a look at the above URL in browser to understand it better.
Here is the full recursive code that writes the text from 3 pages to a file called novel.txt. You may change the number of pages and other details as per your need.
import requests
def get_data(chapter_id, pages):
if pages == 0:
return
url = 'https://api.mystorywave.com/story-wave-backend/api/v1/content/chapters/' + str(chapter_id)
r = requests.get(url)
x = r.json()
pre_id = x['data']['preId']
next_id = x['data']['nextId']
title = x['data']['title']
content = x['data']['content']
chapter_title = f'\n***** Chapter: {title} *****\n'
with open('novel.txt', 'a') as f:
f.write(chapter_title)
f.write(content + '\n')
print(f"Chapter: '{title}' written to file.")
get_data(next_id, pages-1)
curr_id = '324909'
get_data(curr_id, 3)
Chapter: 'Heavenly Wolf Valley' written to file.
Chapter: 'Leaving' written to file.
Chapter: 'Pure Fabrication' written to file.

Scraping multiple pages with Python Beautifulsoup -- only returning data from last page

I am trying to loop through multiple pages to scrape data with Python and Beautifulsoup. My script works for one page, but when trying to iterate through multiple pages, it only returns the data from the last page scraped. I think there may be something wrong in the way I am looping or storing/appending the player_data list.
Here is what I have thus far -- any help is much appreciated.
#! python3
# downloadRecruits.py - Downloads espn college basketball recruiting database info
import requests, os, bs4, csv
import pandas as pd
# Starting url (class of 2007)
base_url = 'http://www.espn.com/college-sports/basketball/recruiting/databaseresults/_/class/2007/page/'
# Number of pages to scrape (Not inclusive, so number + 1)
pages = map(str, range(1,3))
# url for starting page
url = base_url + pages[0]
for n in pages:
# Create url
url = base_url + n
# Parse data using BS
print('Downloading page %s...' % url)
res = requests.get(url)
res.raise_for_status()
# Creating bs object
soup = bs4.BeautifulSoup(res.text, "html.parser")
table = soup.find('table')
# Get the data
data_rows = soup.findAll('tr')[1:]
player_data = []
for tr in data_rows:
tdata = []
for td in tr:
tdata.append(td.getText())
if td.div and td.div['class'][0] == 'school-logo':
tdata.append(td.div.a['href'])
player_data.append(tdata)
print(player_data)

You should have your player_data list definition outside your loop, otherwise only the last iteration's results will be stored.

This is an indentation issue or a declaration issue, depending on the results you expect.
If you need to print the result for each page:
You can solve this by adding 4 spaces before print(player_data).
If you let the print statement outside the for loop block, it will be executed only once, after the loop has ended. So the only values it can display are the last values of player_data leaking from the last iteration of the for loop.
if you want to store all results in player_data and print it at the end :
you must declare player_data outside and before your for loop.
player_data = []
for n in pages:
# [...]

import requests
from bs4 import BeautifulSoup
# Starting url (class of 2007)
base_url = 'http://www.espn.com/college-sports/basketball/recruiting/databaseresults/_/class/2007/page/'
# Number of pages to scrape (Not inclusive, so number + 1)
pages = list(map(str,range(1,3)))
# In Python 3, map returns an iterable object of type map, and not a subscriptible list, which would allow you to write map[i]. To force a list result, write
# url for starting page
url = base_url + pages[0]
for n in pages:
# Create url
url = base_url + n
# Parse data using BS
print('Downloading page %s...' % url)
res = requests.get(url)
res.raise_for_status()
# Creating bs object
soup = BeautifulSoup(res.text, "html.parser")
table = soup.find('table')
# Get the data
data_rows = soup.findAll('tr')[1:]
player_data = []
for tr in data_rows:
tdata = []
for td in tr:
tdata.append(td.getText())
if td.div and td.div['class'][0] == 'school-logo':
tdata.append(td.div.a['href'])
player_data.append(tdata)
print(player_data)

Python Link Scraper

focus_Search = raw_input("Focus Search ")
url = "https://www.google.com/search?q="
res = requests.get(url + focus_Search)
print("You Just Searched")
res_String = res.text
#Now I must get ALL the sections of code that start with "<a href" and end with "/a>"
Im trying to scrape all the links from a google search webpage. I could extract each link one at a time but I'm sure theres a better way to do it.

This creates a list of all links in the search page with some of your code, without getting into BeautifulSoup
import requests
import lxml.html
focus_Search = input("Focus Search ")
url = "https://www.google.com/search?q="
#focus_Search
res = requests.get(url + focus_Search).content
# res
dom = lxml.html.fromstring(res)
links = [x for x in dom.xpath('//a/#href')] # Borrows from cheekybastard in link below
# http://stackoverflow.com/questions/1080411/retrieve-links-from-web-page-using-python-and-beautifulsoup
links

Scrape page with generator

I scraping a site with Beautiful Soup. The problem I have is that certain parts of the site are paginated with JS, with an unknown (varying) number of pages to scrape.
I'm trying to get around this with a generator, but it's my first time writing one and I'm having a hard time wrapping my head around it and figuring out if what I'm doing makes sense.
Code:
from bs4 import BeautifulSoup
import urllib
import urllib2
import jabba_webkit as jw
import csv
import string
import re
import time
tlds = csv.reader(open("top_level_domains.csv", 'r'), delimiter=';')
sites = csv.writer(open("websites_to_scrape.csv", "w"), delimiter=',')
tld = "uz"
has_next = True
page = 0
def create_link(tld, page):
if page == 0:
link = "https://domaintyper.com/top-websites/most-popular-websites-with-" + tld + "-domain"
else:
link = "https://domaintyper.com/top-websites/most-popular-websites-with-" + tld + "-domain/page/" + repr(page)
return link
def check_for_next(soup):
disabled_nav = soup.find(class_="pagingDivDisabled")
if disabled_nav:
if "Next" in disabled_nav:
return False
else:
return True
else:
return True
def make_soup(link):
html = jw.get_page(link)
soup = BeautifulSoup(html, "lxml")
return soup
def all_the_pages(counter):
while True:
link = create_link(tld, counter)
soup = make_soup(link)
if check_for_next(soup) == True:
yield counter
else:
break
counter += 1
def scrape_page(soup):
table = soup.find('table', {'class': 'rankTable'})
th = table.find('tbody')
test = th.find_all("td")
correct_cells = range(1,len(test),3)
for cell in correct_cells:
#print test[cell]
url = repr(test[cell])
content = re.sub("<[^>]*>", "", url)
sites.writerow([tld]+[content])
def main():
for page in all_the_pages(0):
print page
link = create_link(tld, page)
print link
soup = make_soup(link)
scrape_page(soup)
main()
My thinking behind the code:
The scraper should get the page, determine if there is another page that follows, scrape the current page and move to the next one, repreating the process. If there is no next page, it should stop. Does that make sense how I'm going it here?

As I told you, you could use selenium for programmatically clicking on the Next button, but since that is not an option for you, I can think of the following method to get the number of pages using pure BS4:
import requests
from bs4 import BeautifulSoup
def page_count():
pages = 1
url = "https://domaintyper.com/top-websites/most-popular-websites-with-uz-domain/page/{}"
while True:
html = requests.get(url.format(pages)).content
soup = BeautifulSoup(html)
table = soup.find('table', {'class': 'rankTable'})
if len(table.find_all('tr')) <= 1:
return pages
pages += 1