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Modern Python Cookbook

You're reading from   Modern Python Cookbook 130+ updated recipes for modern Python 3.12 with new techniques and tools

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Product type Paperback
Published in Jul 2024
Publisher Packt
ISBN-13 9781835466384
Length 818 pages
Edition 3rd Edition
Languages
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Author (1):
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Steven F. Lott Steven F. Lott
Author Profile Icon Steven F. Lott
Steven F. Lott
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Toc

Table of Contents (20) Chapters Close

Preface 1. Chapter 1 Numbers, Strings, and Tuples FREE CHAPTER 2. Chapter 2 Statements and Syntax 3. Chapter 3 Function Definitions 4. Chapter 4 Built-In Data Structures Part 1: Lists and Sets 5. Chapter 5 Built-In Data Structures Part 2: Dictionaries 6. Chapter 6 User Inputs and Outputs 7. Chapter 7 Basics of Classes and Objects 8. Chapter 8 More Advanced Class Design 9. Chapter 9 Functional Programming Features 10. Chapter 10 Working with Type Matching and Annotations 11. Chapter 11 Input/Output, Physical Format, and Logical Layout 12. Chapter 12 Graphics and Visualization with Jupyter Lab 13. Chapter 13 Application Integration: Configuration 14. Chapter 14 Application Integration: Combination 15. Chapter 15 Testing 16. Chapter 16 Dependencies and Virtual Environments 17. Chapter 17 Documentation and Style 18. Other Books You May Enjoy
19. Index

4.1 Choosing a data structure

Python offers a number of built-in data structures to help us work with collections of data. It can be confusing to match the data structure features with the problem we’re trying to solve.

How do we choose which structure to use?

4.1.1 Getting ready

Before we put data into a collection, we’ll need to consider how we’ll gather the data, and what we’ll do with the collection once we have it. One big question is how to identify a particular item within the collection. Python offers a variety of choices.

4.1.2 How to do it...

  1. Is the programming focused on the existence of a value? An example of this is validating an input value. When the user enters something that’s in a collection, their input is valid; otherwise, the entry is invalid. Simple membership tests suggest using a set:

    def confirm() -> bool:...
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