April 2015
Intermediate to advanced
264 pages
5h 31m
English
Content preview from Test Driven Python DevelopmentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Summary
In this chapter, you saw how to handle the hairy problem of working with the legacy code. We defined the legacy code as any code that does not contain tests. It is an unfortunate fact of life that we have to deal with such code. Fortunately there are a number of techniques available that allow us to safely work with such code. The interactive shell as well as the extremely powerful debugger are a huge help in understanding typical spaghetti code.
The dynamic nature of Python also makes it easy to break dependencies. We can use default value parameters to maintain compatibility with existing code while refactoring to a better design. Powerful patching features as well as the ability to dynamically alter existing instance variables and local ...
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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.
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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.