shot-scraper
oxipng
shot-scraper | oxipng | |
---|---|---|
16 | 14 | |
1,535 | 2,638 | |
- | - | |
7.1 | 8.6 | |
about 1 month ago | 12 days ago | |
Python | Rust | |
Apache License 2.0 | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
shot-scraper
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I want to create IMDB for Open source projects
I had one of these recently! https://github.com/simonw/shot-scraper/pull/133/files
They're /incredibly/ rare though.
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2024-03-01 listening in on the neighborhood
If anyone wants the raw data, it's available in window._Flourish_data variable on https://flo.uri.sh/visualisation/16818696/embed
Which means you can extract it with my https://shot-scraper.datasette.io/ tool like this:
shot-scraper javascript \
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Web Scraping in Python – The Complete Guide
I strongly recommend adding Playwright to your set of tools for Python web scraping. It's by far the most powerful and best designed browser automation tool I've ever worked with.
I use it for my shot-scraper CLI tool: https://shot-scraper.datasette.io/ - which lets you scrape web pages directly from the command line by running JavaScript against pages to extract JSON data: https://shot-scraper.datasette.io/en/stable/javascript.html
- A command-line utility for taking automated screenshots of websites
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Don’t Build a General Purpose API to Power Your Own Front End (2021)
This is exactly what the `Accept` HTTP header is for https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Ac...
I think the author is generally correct that all JSON should be provided in a single request, but if you want to prove it, then you should be able to change your accept header to and from `application/json`/`text/html seeing nearly identical data.
In fact, this is what both GitLab and Github do. Try it out!
`curl -L https://github.com/simonw/shot-scraper` (text/html)
`curl --header "Accept: application/json" -L https://github.com/simonw/shot-scraper` (application/json)
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Git scraping: track changes over time by scraping to a Git repository
Git is a key technology in this approach, because the value you get out of this form of scraping is the commit history - it's a way of turning a static source of information into a record of how that information changed over time.
I think it's fine to use the term "scraping" to refer to downloading a JSON file.
These days an increasing number of websites work by serving up JSON which is then turned into HTML by a client-side JavaScript app. The JSON often isn't a formally documented API, but you can grab it directly to avoid the extra step of processing the HTML.
I do run Git scrapers that process HTML as well. A couple of examples:
scrape-san-mateo-fire-dispatch https://github.com/simonw/scrape-san-mateo-fire-dispatch scrapes the HTML from http://www.firedispatch.com/iPhoneActiveIncident.asp?Agency=... and records both the original HTML and converted JSON in the repository.
scrape-hacker-news-by-domain https://github.com/simonw/scrape-hacker-news-by-domain uses my https://shot-scraper.datasette.io/ browser automation tool to convert an HTML page on Hacker News into JSON and save that to the repo. I wrote more about how that works here: https://simonwillison.net/2022/Dec/2/datasette-write-api/
- Web Scraping via JavaScript Runtime Heap Snapshots (2022)
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Need help with downloading a section of multiple sites as pdf files.
You can use shot-scraper: https://github.com/simonw/shot-scraper
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Ask HN: Small scripts, hacks and automations you're proud of?
I have a neat Hacker News scraping setup that I'm really pleased with.
The problem: I want to know when content from one of my sites is submitted to Hacker News, and keep track of the points and comments over time. I also want to be alerted when it happens.
Solution: https://github.com/simonw/scrape-hacker-news-by-domain/
This repo does a LOT of things.
It's an implementation of my Git scraping pattern - https://simonwillison.net/2020/Oct/9/git-scraping/ - in that it runs a script once an hour to check for more content.
It scrapes https://news.ycombinator.com/from?site=simonwillison.net (scraping the HTML because this particular feature isn't supported by the Hacker News API) using shot-scraper - a tool I built for command-line browser automation: https://shot-scraper.datasette.io/
The scraper works by running this JavaScript against the page and recording the resulting JSON to the Git repository: https://github.com/simonw/scrape-hacker-news-by-domain/blob/...
That solves the "monitor and record any changes" bit.
But... I want alerts when my content shows up.
I solve that using three more tools I built: https://datasette.io/ and https://datasette.io/plugins/datasette-atom and https://datasette.cloud/
This script here runs to push the latest scraped JSON to my SQLite database hosted using my in-development SaaS platform, Datasette Cloud: https://github.com/simonw/scrape-hacker-news-by-domain/blob/...
I defined this SQL view https://simon.datasette.cloud/data/hacker_news_posts_atom which shows the latest data in the format required by the datasette-atom plugin.
Which means I can subscribe to the resulting Atom feed (add .atom to that URL) in NetNewsWire and get alerted when my content shows up on Hacker News!
I wrote a bit more about how this all works here: https://simonwillison.net/2022/Dec/2/datasette-write-api/
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Show HN: Plus – Self Updating Screenshots
Sounds a lot like Simon Willison's open source project shot-scraper
https://github.com/simonw/shot-scraper
oxipng
- OxiPNG: Multithreaded PNG optimizer written in Rust
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screen capture/snapshot utility with image optimization support/configurability
I have had good experiences with https://github.com/shssoichiro/oxipng . Although, I suspect this wouldn't give you nearly enough space savings as jpg.
- Ask HN: Small scripts, hacks and automations you're proud of?
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Exported png image with color-to-alpha edit is huge
If you do want the file as a PNG (for transparency and a common format that's well supported), but don't want it so huge, consider something like oxipng. https://github.com/shssoichiro/oxipng
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Name a program that doesn't get enough love!
oxipng, pngquant and svgcleaner — optimizing images
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Losslessly Optimising Images
I wonder how `pngcrush` compares to `oxipng` (https://github.com/shssoichiro/oxipng).
Personally, I use `oxipng` if I want lossless compression. However, most of the time, I use `pngquant` instead, since it gives significant size reduction even at `99%` (I can't even distinguish between the original and reduced image).
pngquant --quality=99 --ext=.png --force file.png
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Adobe plans to make Photoshop on the web free to everyone
Depending on your workflow it might make sense to export PNGs directly from Affinity and then reduce their size with a utility like Oxipng, which uses all your cores to find the best algorithm for each particular image.
- OptiPNG vs. PNGcrush vs. Gimp to Reduce PNG Size
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Help processing massive videos (16k resolution)
Assuming your frames are PNG files, you could use a lossless optimizer like optipng to try if their size can be reduced. I prefer oxipng, which is faster and multithreaded, and seems to have more active development.
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(Urgent) Best Image Compressor Sites That Barely Compress?
Not sure what extensions of images you use, but if they’re PNG you could use oxipng: https://github.com/shssoichiro/oxipng
What are some alternatives?
gmail-sidebar-drive - A simple gmail add on to display all the drive folders and files in sidebar.
squoosh - Make images smaller using best-in-class codecs, right in the browser.
zettelkasten - Creating notes with the zettelkasten note taking method and storing all notes on github
ImageOptim - GUI image optimizer for Mac
scrape-san-mateo-fire-dispatch
opencv-rust - Rust bindings for OpenCV 3 & 4
bbcrss - Scrapes the headlines from BBC News indexes every five minutes
sharp - High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, AVIF and TIFF images. Uses the libvips library.
scrape-hacker-news-by-domain - Scrape HN to track links from specific domains
image - Encoding and decoding images in Rust
SeleniumBase - 📊 Python's all-in-one framework for web crawling, scraping, testing, and reporting. Supports pytest. UC Mode provides stealth. Includes many tools.
imageproc (PistonDevelopers) - Image processing operations