BeautifulSoup | python框架BeautifulSoup的应用,结合Requests抓取了极客学院网站上所有课程的基本信息
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kandi X-RAY | BeautifulSoup Summary
python框架BeautifulSoup的应用,结合Requests抓取了极客学院网站上所有课程的基本信息
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QUESTION
ANSWER
Answered 2021-Jun-16 at 01:11The problem is that your CSS selectors include parentheses ()
and dollar signs $
. These symbols already have a special meaning. See:
You can escape these characters using a backslash \
.
QUESTION
maybe you guys here can help. i’m trying to get a token in a script on a website with python beautiful soup but i’m stuck at one part. the request i make is
...ANSWER
Answered 2021-Jun-15 at 21:46You need access throught JSON, there has an option:
QUESTION
I'm trying to use BS4 to parse through the HTML for an about page on a youtube channel so I can scrape the number of channel views. Below is the code to scrape the channel views (located in the 'yt-formatted-string') and also the whole right column of the page. Both lines of code return either an empty list and a "None" value for the findAll() and find() functions, respectively.
I read another thread saying I may be receiving an empty list or "None" value because the page is accessing an API to get the total channel views to count and the values aren't actually in the HTML I'm parsing.
I know I could access much of this info through the Youtube API, but I want to iterate this code over multiple channels that are not my own. Moreover, I want to understand how to use BS4 to its full extent so I can replicate this process on an Instagram page or Facebook page.
Should I be using a different library that isn't BS4? Is what I'm looking to accomplish even possible?
My CODE
...ANSWER
Answered 2021-Jun-15 at 20:43YouTube is loaded dynamically, therefore urlib
won't support it.
However, the data is available in JSON format on the website. You can convert this data to a Python dictionary (dict
) using the built-in json
library.
This example is using the URL you have provided: https://www.youtube.com/c/Rozziofficial/about, you can change the channel name, it will work for all channels.
Here's an example using requests
, you can use urlib
instead:
QUESTION
I am writing a program in python to have a user input multiple websites then request and scrape those websites for their titles and output it. However, when the program surpasses 8 websites the program crashes every time. I am not sure if it is a memory problem, but I have been looking all over and can't find any one who has had the same problem. The code is below (I added 9 lists so all you have to do is copy and paste the code to see the issue).
...ANSWER
Answered 2021-Jun-15 at 19:45To avoid the page from crashing, add the user-agent
header to the headers=
parameter in requests.get()
, otherwise, the page thinks that your a bot and will block you.
QUESTION
I am trying to scrape data of a match played between United and Sheffield United yesterday night in the premier league from understat.com. My goal is to fetch "shots per game". If you see understat.com, it has a match id for all the matches and I am using that match id to scrape the data using BS4 and requests. I have successfully located the class and got the raw data that I need to fetch in JSON format but it's giving me an error like "json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)". Below is my code:
...ANSWER
Answered 2021-Feb-10 at 17:22The problem is your json_data
as a string starts with the '{
. The start index you want is actually one more index value ahead at the {
, so you want to add 2, not 1 to the index start:
index_start = strings.index("('")+2
instead of index_start = strings.index("('")+1
QUESTION
I have a folder with several hundreds of .txt files that contain HTML code. All the file names and file paths are stored in a .csv file. I would like to convert the HTML code in each of the .txt file into plain text and save the file again.
I read that html2text is a python script that would fit my needs.
Could you help how I would need to proceed?
main.py
...ANSWER
Answered 2021-Jun-15 at 09:01After some discussion in the comments below, my original answer isn't going to cut it.
The structure of the file Test.csv
is not something that DictReader
from the CSV module can parse. This is easily solved by creating a simple file parser.
The part below the 2 methods has not changed much. Instead of parsing the results of DictReader
from the CSV module, we parse the results from the function readcsv
updated code:
QUESTION
I am translating Xliff file using BeautifulSoup and googletrans packages. I managed to extract all strings and translate them and managed to replace strings by creating new tag with a translations, e.g.
...ANSWER
Answered 2021-Feb-09 at 17:21To extract the two text entries from within , you could use the following approach:
QUESTION
The project: for a list of meta-data of wordpress-plugins: - approx 50 plugins are of interest! but the challenge is: i want to fetch meta-data of all the existing plugins. What i subsequently want to filter out after the fetch is - those plugins that have the newest timestamp - that are updated (most) recently. It is all aobut acutality... so the base-url to start is this:
...ANSWER
Answered 2021-Jun-09 at 20:19The page is rather well organized so scraping it should be pretty straight forward. All you need to do is get the plugin card and then simply extract the necessary parts.
Here's my take on it.
QUESTION
I need some help in trying to web scrape laptop prices, ratings and products from Flipkart to a CSV file with BeautifulSoup, Selenium and Pandas. The problem is that I am getting an error AttributeError: 'NoneType' object has no attribute 'text' when I try to append the scraped items into an empty list.
...ANSWER
Answered 2021-Jun-10 at 15:08You should use .contents
or .get_text()
instead .text
. Also, try to care about NoneType :
QUESTION
I have the following code and the code scrapes some data from websites like Redbubble. and sometimes I scrape a lot of data and I want to know the real-time progress in the code... I tried progressbar module but I didn't get what I want....
...ANSWER
Answered 2021-Jun-13 at 19:26If you have multiple pages to request from, here is a cool library, tqdm
, which shows a progress bar.
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