Develop Reference

BeautifulSoup Returns empty list which leads to an IndexError in my Python code

I am trying to do web scraping using BeautifulSoup. The code I have written is below:
import requests
from bs4 import BeautifulSoup
response = requests.get("https://stackoverflow.com/questions")
soup = BeautifulSoup(response.text, "html.parser")
questions = soup.select(".question-summary")
print(type(questions[0]))
When I run the code, I get the error message below:
print(type(questions[10]))
IndexError: list index out of range
Then i tried to print the list like below:
import requests
from bs4 import BeautifulSoup
response = requests.get("https://stackoverflow.com/questions")
soup = BeautifulSoup(response.text, "html.parser")
questions = soup.select(".question-summary")
print(questions)
And then I get an empty list: []
What am I doing wrong?
Thanks for your answers.

.question-summary is incorrect locator because it's a portion of id meaning each id value start with question-summary. Now it's working.
import requests
from bs4 import BeautifulSoup
response = requests.get("https://stackoverflow.com/questions")
soup = BeautifulSoup(response.text, "html.parser")
questions = soup.select('[id^="question-summary"]')
print(questions)
Output:
1" data-post-type-id="1" id="question-summary-71715531">
<div class="s-post-summary--stats js-post-summary-stats">
<div class="s-post-summary--stats-item s-post-summary--stats-item__emphasized" title="Score of 0">
<span class="s-post-summary--stats-item-number">0</span>
<span class="s-post-summary--stats-item-unit">votes</span>
</div>
<div class="s-post-summary--stats-item" title="0 answers">
<span class="s-post-summary--stats-item-number">0</span>
<span class="s-post-summary--stats-item-unit">answers</span>
</div>
<div class="s-post-summary--stats-item" title="5 views">
<span class="s-post-summary--stats-item-number">5</span>
<span class="s-post-summary--stats-item-unit">views</span>
</div>
</div>
<div class="s-post-summary--content">
<h3 class="s-post-summary--content-title">
<a class="s-link" href="/questions/71715531/is-it-possible-to-draw-a-logistic-regression-graph-with-multiple-x-variable">Is it possible to draw a
logistic regression graph with multiple x variable?</a>
</h3>
<div class="s-post-summary--content-excerpt">
Currently, this is my X and V value. May I know is it possible to draw a logistic regression curve with X that has multiple column? Or I am required to draw multiple graphs to do so?
X = df1.drop(['...
</div>
<div class="s-post-summary--meta">
<div class="s-post-summary--meta-tags tags js-tags t-python-3ûx t-machine-learning">
<a class="post-tag flex--item mt0 js-tagname-python-3ûx" href="/questions/tagged/python-3.x" rel="tag" title="show questions tagged 'python-3.x'">python-3.x</a> <a class="post-tag flex--item mt0 js-tagname-machine-learning" href="/questions/tagged/machine-learning" rel="tag" title="show questions tagged 'machine-learning'">machine-learning</a>
</div>
<div class="s-user-card s-user-card__minimal">
<a class="s-avatar s-avatar__16 s-user-card--avatar" href="/users/14128881/christopher-chua"> <div class="gravatar-wrapper-16" data-user-id="14128881">
<img ,="" alt="user avatar" class="s-avatar--image" height="16" src="https://lh6.googleusercontent.com/-Sn3B_E5hiJc/AAAAAAAAAAI/AAAAAAAAAAA/AMZuucl1oyfdhJiXhrx73JLYqzKAK9icag/photo.jpg?sz=32" width="16"/>
</div>
</a>
<div class="s-user-card--info">
<div class="s-user-card--link d-flex gs4">
<a class="flex--item" href="/users/14128881/christopher-chua">Christopher Chua</a>
</div>
<ul class="s-user-card--awards">
<li class="s-user-card--rep"><span class="todo-no-class-here" dir="ltr" title="reputation score ">7</span></li>
</ul>
</div>
<time class="s-user-card--time">asked <span class="relativetime" title="2022-04-02 07:03:06Z">13 mins ago</span></time>
.. so on

Scrape values inside span class webpage with beautifulsoup python

Hello everyone I have a webpage I'm trying to scrape and the page has tons of span classes and most of which is useless information I posted a section of the span class data that I need but I'm not able to do find.all span because there are 100's of others not needed.
<div class="col-md-4">
<p>
<span class="text-muted">File Number</span><br>
A-21-897274
</p>
</div>
<div class="col-md-4">
<p>
<span class="text-muted">Location</span><br>
Ohio
</p>
</div>
<div class="col-md-4">
<p>
<span class="text-muted">Date</span><br>
07/01/2022
</p>
</div>
</div>
I need the span titles:
File Number, Location, Date
and then the values that match:
"A-21-897274", "Ohio", "07/01/2022"
I need this printed out so I can make a pandas data frame. But I cant seem to get the specific spans printed with their value.
What I've tried:
import bs4
from bs4 import BeautifulSoup
soup = BeautifulSoup(..., 'lxml')
for title_tag in soup.find_all('span', class_='text-muted'):
# get the last sibling
*_, value_tag = title_tag.next_siblings
title = title_tag.text.strip()
if isinstance(value_tag, bs4.element.Tag):
value = value_tag.text.strip()
else: # it's a navigable string element
value = value_tag.strip()
print(title, value)
output:
File Number "A-21-897274"
Location "Ohio"
Operations_Manager "Joanna"
Date "07/01/2022"
Type "Transfer"
Status "Open"
ETC "ETC"
ETC "ETC"
This will print out everything I need BUT it also prints out 100's of other values I don't want/need.

You can use function in soup.find_all to select only wanted elements and then .find_next_sibling() to select the value. For example:
from bs4 import BeautifulSoup
html_doc = """
<div class="col-md-4">
<p>
<span class="text-muted">File Number</span><br>
A-21-897274
</p>
</div>
<div class="col-md-4">
<p>
<span class="text-muted">Location</span><br>
Ohio
</p>
</div>
<div class="col-md-4">
<p>
<span class="text-muted">Date</span><br>
07/01/2022
</p>
</div>
</div>
"""
soup = BeautifulSoup(html_doc, "html.parser")
def correct_tag(tag):
return tag.name == "span" and tag.get_text(strip=True) in {
"File Number",
"Location",
"Date",
}
for t in soup.find_all(correct_tag):
print(f"{t.text}: {t.find_next_sibling(text=True).strip()}")
Prints:
File Number: A-21-897274
Location: Ohio
Date: 07/01/2022

GitHub get commits number using python and beautiful soup

I'm trying to get the number of commits of github repos using python and beautiful soup
html code:
<div class="flex-shrink-0">
<h2 class="sr-only">Git stats</h2>
<ul class="list-style-none d-flex">
<li class="ml-0 ml-md-3">
<a data-pjax href="..." class="pl-3 pr-3 py-3 p-md-0 mt-n3 mb-n3 mr-n3 m-md-0 Link--primary no-underline no-wrap">
<span class="d-none d-sm-inline">
<strong>26</strong>
<span aria-label="Commits on master" class="color-text-secondary d-none d-lg-inline">
commits
</span>
</span>
</a>
</li>
</ul>
</div>
my code:
r = requests.get(source_code_link)
soup = bs(r.content, 'lxml')
spans = soup.find_all('span', class_='d-none d-sm-inline')
for span in spans:
number = span.select_one('strong')
sometimes works but sometimes no because there are more then one span tag with class d-none d-sm-inline.
how can i solve ?

Here's an approach using list commits from GitHub's REST API
import requests
user = ... # username or organisation
repo = ... # repository name
response = requests.get(f"https://api.github.com/repos/{user}/{repo}/commits")
if response.ok:
ncommits = len(response.json())
else:
raise ValueError(f"error: {response.url} responded {response.reason}")
print(ncommits)

from bs4 import BeautifulSoup as bs
html="""<span class="d-none d-sm-inline">
<strong>26</strong>
<span aria-label="Commits on master" class="color-text-secondary d-none d-lg-inline">
commits
</span>
</span>
<div class="flex-shrink-0">
<h2 class="sr-only">Git stats</h2>
<ul class="list-style-none d-flex">
<li class="ml-0 ml-md-3">
<a data-pjax href="..." class="pl-3 pr-3 py-3 p-md-0 mt-n3 mb-n3 mr-n3 m-md-0 Link--primary no-underline no-wrap">
<span class="d-none d-sm-inline">
<strong>23</strong>
<span aria-label="Commits on master" class="color-text-secondary d-none d-lg-inline">
commits
</span>
</span>
</a>
</li>
</ul>
</div>"""
I have combine both example which look up for tag strong and based on that prints data by using .contents method
soup = bs(html, 'lxml')
spans = soup.find_all('span', class_='d-none d-sm-inline')
for span in spans:
for tag in span.contents:
if tag.name=="strong" :
print(tag.get_text())
using list comprehension :
for span in spans:
data=[tag for tag in span.contents if tag.name=="strong"]
print(data[0].get_text())
Ouput for both case:
26
23

You can use the find_next() method to look for a <strong> after the class d-none d-sm-inline.
In your case:
from bs4 import BeautifulSoup
soup = BeautifulSoup(html, "html.parser")
for tag in soup.find_all("span", class_="d-none d-sm-inline"):
print(tag.find_next("strong").text)

Parsing HTML with BeatifulSoup class == AND title CONTAINS

I am trying to parse the following HTML:
<div class="product-details">
<h4 class="title" >Blue - Standard</h4>
<a class="learn-more" data-test-selector="linkViewMoreDetails" href="https://productwebpage.com">Learn More</a>
<div class="tocart" <a class="" href="/store/addtocartplp?productId=3593" id="AddToCartSimple-3593">Add To Cart</a></div>
</div>
,
<div class="product-details">
<h4 class="title" >Blue - Wide</h4>
<a class="learn-more" data-test-selector="linkViewMoreDetails" href="https://productwebpage.com">Learn More</a>
<div class="tocart" <a class="disAddtoCardBtn" href="javascript:void(0)" id="AddToCartSimple-3576" >SOLD</a></div>
</div>
I am trying to get the 'id' where the title contains 'Blue' AND the item is not sold.
I have tried:
soup.find_all("a",href=re.compile("Blue"),class_="")
links = soup.find_all("a", href=re.compile("Blue", "Add To Cart"))
ids = [tag["id"] for tag in soup.find_all("a", href=re.compile("Blue"))]
But it is not returning the info I'm looking for.
I would like it to return:
AddToCartSimple-3593

I think your html is corrupted. You can do the entire filtering with css selectors using :has, :not, and :contains (:-soup-contains - latest soupsieve), along with attribute = value selectors. The ^ is a starts with operator, meaning attribute value starts with the string after the =. The ~ is a general sibling combinator and the > is a child combinator. This means looking for a sibling with class (.) tocart and then a child with id that starts with AddToCartSimple-, but that doesn't have text containing SOLD displayed. Less specific than !="SOLD" , as it can be a partial string exclusion. Depends on observed variation in actual data.
from bs4 import BeautifulSoup as bs
html ='''
<div class="product-details">
<h4 class="title">Blue - Standard</h4> <a class="learn-more" data-test-selector="linkViewMoreDetails" href="https://productwebpage.com">Learn More</a>
<div class="tocart"> <a class="" href="/store/addtocartplp?productId=3593" id="AddToCartSimple-3593">Add To Cart</a>
</div>
<div class="product-details">
<h4 class="title">Blue - Wide</h4> <a class="learn-more" data-test-selector="linkViewMoreDetails" href="https://productwebpage.com">Learn More</a>
<div class="tocart"> <a class="disAddtoCardBtn" href="javascript:void(0)" id="AddToCartSimple-3576">SOLD</a>
</div>
'''
soup = bs(html, 'html.parser')
print(soup.select_one('.title:has([title^="Blue -"]) ~ .tocart > [id^=AddToCartSimple-]:not(:contains("SOLD"))')['id'])
You should check there was a match before accessing with ['id'] of course. You could also go for all matches as follows:
[i['id'] for i in soup.select('.title:has([title^="Blue -"]) ~ .tocart > [id^=AddToCartSimple-]:not(:contains("SOLD"))')]

To get the data where the "title" contains "Blue" and the item is not "SOLD":
Use a CSS selector .product-details > h4 a[title*='Blue'] which will select all a where the title=Blue under an h4 under the class product-details
Find the next div using the find_next() method, and check that the text is not "SOLD".
Print the next div's id
from bs4 import BeautifulSoup
html = """<div class="product-details">
<h4 class="title" >Blue - Standard</h4>
<a class="learn-more" data-test-selector="linkViewMoreDetails" href="https://productwebpage.com">Learn More</a>
<div class="tocart" <a class="" href="/store/addtocartplp?productId=3593" id="AddToCartSimple-3593">Add To Cart</a></div>
</div>
<div class="product-details">
<h4 class="title" >Blue - Wide</h4>
<a class="learn-more" data-test-selector="linkViewMoreDetails" href="https://productwebpage.com">Learn More</a>
<div class="tocart" <a class="disAddtoCardBtn" href="javascript:void(0)" id="AddToCartSimple-3576" >SOLD</a></div>
</div>"""
soup = BeautifulSoup(html, "html.parser")
for tag in soup.select(".product-details > h4 a[title*='Blue']"):
if tag.find_next("div").text != "SOLD":
print(tag.find_next("div")["id"])
Output:
AddToCartSimple-3593

BeautifulSoup: find all tags before stopping condition is met

I'm trying to extract a class tag from an HTML file, but only if it is located before a given stopping point. What I have is:
import requests
from bs4 import BeautifulSoup
page = requests.get("https://mysite")
soup = BeautifulSoup(page.content, 'html.parser')
class_extr = soup.find_all("span", class_="myclass")
This works, but it finds all instances of myclass, and i only want those before the following text shows in the soup:
<h4 class="cat-title" id="55">
Title text N1
<small>
Title text N2.
</small>
</h4>
The thing that makes this block unique are the Title text N lines, especially the Title text N2. line. There are many cat-title tags before, so I can't use that as a stopping condition.
The code surrounding this block looks like this:
...
<div class="myc">
<a class="bbb" href="linkhere_893">
<span class="myclass">Text893</span>
<img data-lazy="https://link893.jpg"/>
</a>
</div>
<div class="myc">
<a class="bbb" href="linkhere_96">
<span class="myclass">Text96</span>
<img data-lazy="https://link96.jpg"/>
</a>
</div>
</div><!-- This closes a list that starts above -->
<h4 class="cat-title" id="55">Title text N1 <small> Title text N2.</small></h4>
<div class="list" id="55">
<div class="myc">
<a class="bbb" href="linkhere_34">
<span class="myclass">Text34</span>
<img data-lazy="https://link34.jpg"/>
</a>
</div>
<div class="myc">
...
continuing both above and below.
How can I do this?

Try using find_all_previous():
import requests
from bs4 import BeautifulSoup
page = requests.get("https://mysite")
soup = BeautifulSoup(page.content, 'html.parser')
stop_at = soup.find("h4", class_="cat-title", id='55') # finds your stop tag
class_extr = stop_at.find_all_previous("span", class_="myclass")
This will stop at the first <h4 class='cat-title', id=55> tag in the event that there are multiple.
Reference: Beautiful Soup Documentation

How about this:
page = requests.get("https://mysite")
# Split your page and unwanted string, then parse with BeautifulSoup
text = page.text.split('Title text N2.')
soup = BeautifulSoup(text[0], 'html.parser')
class_extr = soup.find_all("span", class_="myclass")

You can try something like this:
from bs4 import BeautifulSoup
page = """
<html><body><p>
<span class="myclass">text 1</span>
<span class="myclass">text 2</span>
</p>
<h4 class="cat-title" id="55">
Title text N1
<small>
Title text N2.
</small>
</h4>
<p>
<span class="myclass">text 3</span>
<span class="myclass">text 4</span>
</p>
</body>
</html>
"""
soup = BeautifulSoup(page, 'html.parser')
for i in soup.find_all():
if i.name == 'h4' and i.has_attr('class') and i['class'][0] == 'cat-title' and i.has_attr('id') and i['id'] == '55':
if i.find("small") and i.find("small").text.strip()== "Title text N2.":
break
elif i.name == 'span'and i.has_attr('class') and i['class'][0] == 'myclass':
print (i)
Outputs:
<span class="myclass">text 1</span>
<span class="myclass">text 2</span>