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Learn Python Programming, 3rd edition

You're reading from   Learn Python Programming, 3rd edition An in-depth introduction to the fundamentals of Python

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Product type Paperback
Published in Oct 2021
Publisher Packt
ISBN-13 9781801815093
Length 554 pages
Edition 3rd Edition
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Authors (2):
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Heinrich Kruger Heinrich Kruger
Author Profile Icon Heinrich Kruger
Heinrich Kruger
Fabrizio Romano Fabrizio Romano
Author Profile Icon Fabrizio Romano
Fabrizio Romano
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Table of Contents (18) Chapters Close

Preface 1. A Gentle Introduction to Python 2. Built-In Data Types FREE CHAPTER 3. Conditionals and Iteration 4. Functions, the Building Blocks of Code 5. Comprehensions and Generators 6. OOP, Decorators, and Iterators 7. Exceptions and Context Managers 8. Files and Data Persistence 9. Cryptography and Tokens 10. Testing 11. Debugging and Profiling 12. GUIs and Scripting 13. Data Science in Brief 14. Introduction to API Development 15. Packaging Python Applications 16. Other Books You May Enjoy
17. Index

Summary

In this chapter, we explored the concepts of iteration and generation a bit more deeply. We looked at the map(), zip(), and filter() functions in detail, and learned how to use them as an alternative to a regular for loop approach.

Then we covered the concept of comprehensions for lists, dictionaries, and sets. We explored their syntax and how to use them as an alternative to both the classic for loop approach and the use of the map(), zip(), and filter() functions.

Finally, we talked about the concept of generation in two forms: generator functions and expressions. We learned how to save time and space by using generation techniques and saw how they can make possible what wouldn't normally be so if we used a conventional approach based on lists.

We talked about performance, and saw that for loops come last in terms of speed, but they provide the best readability and flexibility to change. On the other hand, functions such as map() and filter...

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