May 2017
Beginner to intermediate
220 pages
5h 2m
English
Content preview from Python Web Scraping - Second Edition
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Retrying downloads
Often, the errors encountered when downloading are temporary; an example is when the web server is overloaded and returns a 503 Service Unavailable error. For these errors, we can retry the download after a short time because the server problem may now be resolved. However, we do not want to retry downloading for all errors. If the server returns 404 Not Found, then the web page does not currently exist and the same request is unlikely to produce a different result.
The full list of possible HTTP errors is defined by the Internet Engineering Task Force, and is available for viewing at https://tools.ietf.org/html/rfc7231#section-6. In this document, we can see that 4xx errors occur when there is something wrong with our ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.