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A Chrome extension for writing custom web scraping programs and web automation programs. Just demonstrate how to collect the first row of data, then let the extension write the program for collecting all rows.
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Helena is a Chrome extension that can help automate repetitive interactions with well-structured webpages. A user can demonstrate how to scrape the first row of a dataset, and Helena will write a program for scraping the next hundreds or thousands of rows. Helena is also the name of the web automation language that the Helena extension uses. See http://helena-lang.org/ for an overview of the Helena project.
Sure! Here's a very quick video demo:
Yes! In fact Helena is designed especially for non-programmers. The idea is that you provide a demonstration of the actions you want Helena to do, and Helena figures out the rest.
Find the directions here: http://helena-lang.org/download
Find the directions here: https://github.com/schasins/helena/wiki/Installing-Helena-(for-Developers)
Yes. See details at: https://helena-lang.org/install
Helena has been tested with recent versions of Chrome on recent Mac and Linux operating systems.
We recommend learning from video tutorials! Our current playlist of tutorials is available here: https://www.youtube.com/playlist?list=PLYeneIW6KQxIDUEp2QaNNKrgXg9hVvxZo
We recommend starting with something simple like our favorite Google Scholar example!
If you want the quick intro: Helena: Write a Scraping Script in Under a Minute
If you want a slower walkthrough: A Brief Introduction to the Helena Web Automation Language and Tool
Once you've watched a few video tutorials and you're almost ready to start writing your own scripts, we highly recommend checking out our tips and tricks page: https://github.com/schasins/helena/wiki/Helena-Tips-and-Tricks.
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