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The strategy pattern is a widely used design pattern that help you write better Python code. I'll show you how to apply the strategy using a practical example written in Python. I'll cover both the classic object-oriented version of the pattern, and I'll also show you a functional version that's a bit shorter to write and works equally well. At the end of the video, there's a more advanced bit where you'll see how to add type hints for functions as parameters.
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You can find the code I worked on in this episode in my GitHub repository: https://github.com/arjancodes/betterpython
Chapters:
0:00 Intro
1:30 Code example
3:21 Main problem with the code
4:01 Switching to a strategy pattern
5:23 Creating concrete strategies
6:56 Updating the process_tickets method
10:09 Adding a new strategy
11:03 A functional version of the strategy
13:18 Adding a function type hint
14:49 Outro