May 2017
Beginner to intermediate
220 pages
5h 2m
English
Content preview from Python Web Scraping - Second Edition
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Link crawlers
So far, we have implemented two simple crawlers that take advantage of the structure of our sample website to download all published countries. These techniques should be used when available, because they minimize the number of web pages to download. However, for other websites, we need to make our crawler act more like a typical user and follow links to reach the interesting content.
We could simply download the entire website by following every link. However, this would likely download many web pages we don't need. For example, to scrape user account details from an online forum, only account pages need to be downloaded and not discussion threads. The link crawler we use in this chapter will use regular expressions to determine ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.