webscraping-open
pup
| webscraping-open | pup | |
|---|---|---|
| 2 | 52 | |
| - | 8,000 | |
| - | - | |
| - | 0.0 | |
| - | 8 days ago | |
| HTML | ||
| - | MIT License |
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webscraping-open
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Ask HN: What are the best tools for web scraping in 2022?
I’m collecting my experience in using these tools in this “web scraping open knowledge project” on github (https://github.com/reanalytics-databoutique/webscraping-open...) and on my substack (http://thewebscraping.club/) for longer free content
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Web Scraping Open Knowledge
On the page about canvas fingerprinting[0], it only mentions Cloudflare. From what I can tell, reCaptcha v3 also uses canvas fingerprinting [1]
[0] https://github.com/reanalytics-databoutique/webscraping-open...
[1] https://brianwjoe.com/2019/02/06/how-does-recaptcha-v3-work/
pup
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script to download some notes
And lnk=$(curl -s https://www.selfstudys.com$url |grep "PDFFlip" | cut -d '"' -f 6) to lnk=$(curl -s https://www.selfstudys.com$url | pup "div#PDFF attr{source}" ) here pup will print content of source attribute from div tag with id PDFF i dont know that much about html & css so this is what i came up with. but i am sure you can also select class & make list of suburls from them. check out the video from bugswriter on pup or read docs from git hub for more info github link: https://github.com/ericchiang/pup
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What monitoring tool do you use or recommend?
jq is pretty amazing. If you are comfortable with its jquery-like CSS selector syntax, then I should also mention a couple similar cli utilities that apply it to HTML: htmlp and pup.
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Creating a data scraper as a beginner?
Regex is not a great tool for parsing web pages. Open up a browser dev tools window and select a bit of the page. Right click > copy... XPath expression or CSS selector. A proper web scraping tool will accept either of those. No muss, no fuss. You can even use simple command line tools: xpath or pup
- December 5, 2022: FLiP Stack Weekly
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Show HN: A tool like jq, but for parsing HTML
This is HTML to JSON, written in Rust, and there's also pup[1] which I found out about just the other day on HN[2] which uses a very similar syntax (CSS selectors) but outputs HTML and is written in Go.
I can see room for both though it would interesting to have a more detailed comparison to go on (e.g. types of HTML, speed etc).
[1] https://github.com/ericchiang/pup
[2] https://news.ycombinator.com/item?id=33805732
- Pup: Parsing HTML at the command line
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pup: Parsing HTML at the Command Line
It looks like the project became inactive for a bit and there are alternatives such as htmlq, etc. https://github.com/ericchiang/pup/issues/150
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Converting field before delimiter to uppercase and how to replace with multiple newlines
Another tool worth mentioning is pup - it can produce JSON output which means you can pipe it to jq
What are some alternatives?
Webscraping Open Project - The web scraping open project repository aims to share knowledge and experiences about web scraping with Python [Moved to: https://github.com/TheWebScrapingClub/webscraping-from-0-to-hero]
htmlq - Like jq, but for HTML.
linkedom - A triple-linked lists based DOM implementation.
xidel - Command line tool to download and extract data from HTML/XML pages or JSON-APIs, using CSS, XPath 3.0, XQuery 3.0, JSONiq or pattern matching. It can also create new or transformed XML/HTML/JSON documents.
undetected-chromedriver - Custom Selenium Chromedriver | Zero-Config | Passes ALL bot mitigation systems (like Distil / Imperva/ Datadadome / CloudFlare IUAM)
gron - Make JSON greppable!
docker-selenium-lambda - The simplest demo of chrome automation by python and selenium in AWS Lambda
yq - Command-line YAML, XML, TOML processor - jq wrapper for YAML/XML/TOML documents
jq - Command-line JSON processor [Moved to: https://github.com/jqlang/jq]
cascadia - Go cascadia package command line CSS selector
openstates-scrapers - source for Open States scrapers
ddgr - :duck: DuckDuckGo from the terminal