October 2021
Beginner
554 pages
12h 52m
English
Content preview from Learn Python Programming - Third Edition
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7
Exceptions and Context Managers
The best-laid schemes o' mice an' men Gang aft agley– Robert Burns
These famous lines by Robert Burns should be etched into the mind of every programmer. Even if our code is correct, errors will happen. If we don't deal with them properly, they can cause our best-laid schemes to go awry.
Unhandled errors can cause software to crash or misbehave. If you are lucky, this just results in an irritated user. If you're unlucky, your business can end up losing money (an e-commerce website that keeps crashing is not likely to be very successful). Therefore, it is important to learn how to detect and handle errors. It is also a good idea to cultivate the habit of always thinking about what errors can occur and how your ...
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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.
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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.