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Learn Python Programming

Learn Python Programming - Third Edition

By : Fabrizio Romano, Heinrich Kruger
4.2 (35)
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Learn Python Programming

Learn Python Programming

4.2 (35)
By: Fabrizio Romano, Heinrich Kruger

Overview of this book

Learn Python Programming, Third Edition is both a theoretical and practical introduction to Python, an extremely flexible and powerful programming language that can be applied to many disciplines. This book will make learning Python easy and give you a thorough understanding of the language. You'll learn how to write programs, build modern APIs, and work with data by using renowned Python data science libraries. This revised edition covers the latest updates on API management, packaging applications, and testing. There is also broader coverage of context managers and an updated data science chapter. The book empowers you to take ownership of writing your software and become independent in fetching the resources you need. You will have a clear idea of where to go and how to build on what you have learned from the book. Through examples, the book explores a wide range of applications and concludes by building real-world Python projects based on the concepts you have learned.
Table of Contents (18 chapters)
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16
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Index

Functions, the Building Blocks of Code

"To create architecture is to put in order. Put what in order? Functions and objects."

– Le Corbusier

In the previous chapters, we have seen that everything is an object in Python, and functions are no exception. But what exactly is a function? A function is a sequence of instructions that perform a task, bundled together as a unit. This unit can then be imported and used wherever it is needed. There are many advantages to using functions in your code, as we'll see shortly.

In this chapter, we are going to cover the following:

  • Functions—what they are and why we should use them
  • Scopes and name resolution
  • Function signatures—input parameters and return values
  • Recursive and anonymous functions
  • Importing objects for code reuse

We believe the saying a picture is worth a thousand words is particularly true when explaining functions to someone who is new to...

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Learn Python Programming
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