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The Python Workshop Second Edition

You're reading from   The Python Workshop Second Edition Write Python code to solve challenging real-world problems

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Product type Paperback
Published in Nov 2022
Publisher Packt
ISBN-13 9781804610619
Length 600 pages
Edition 2nd Edition
Languages
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Authors (5):
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Mario Corchero Jiménez Mario Corchero Jiménez
Author Profile Icon Mario Corchero Jiménez
Mario Corchero Jiménez
Andrew Bird Andrew Bird
Author Profile Icon Andrew Bird
Andrew Bird
Corey Wade Corey Wade
Author Profile Icon Corey Wade
Corey Wade
Graham Lee Graham Lee
Author Profile Icon Graham Lee
Graham Lee
Dr. Lau Cher Han Dr. Lau Cher Han
Author Profile Icon Dr. Lau Cher Han
Dr. Lau Cher Han
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Toc

Table of Contents (16) Chapters Close

Preface 1. Chapter 1: Python Fundamentals – Math, Strings, Conditionals, and Loops 2. Chapter 2: Python Data Structures FREE CHAPTER 3. Chapter 3: Executing Python – Programs, Algorithms, and Functions 4. Chapter 4: Extending Python, Files, Errors, and Graphs 5. Chapter 5: Constructing Python – Classes and Methods 6. Chapter 6: The Standard Library 7. Chapter 7: Becoming Pythonic 8. Chapter 8: Software Development 9. Chapter 9: Practical Python – Advanced Topics 10. Chapter 10: Data Analytics with pandas and NumPy 11. Chapter 11: Machine Learning 12. Chapter 12: Deep Learning with Python 13. Chapter 13: The Evolution of Python – Discovering New Python Features 14. Index 15. Other Books You May Enjoy

Slicing

A slice is a subset of a string or other element. A slice could be the whole element or one character, but it’s more commonly a group of adjoining characters.

Let’s say you want to access the fifth through eleventh letters of a string. So, you start at index 4 and end at index 10, as was explained in the Indexing section. When slicing, the colon symbol (:) is inserted between indices, like so: [4:10].

There is one caveat: the lower bound of a slice is always included, but the upper bound is not. So, in the preceding example, if you want to include the 10th index, you must use [4:11].

Now, let’s have a look at the following example for slicing.

Retrieve the fifth through eleventh letters of the destination variable, which you used in the Indexing section:

destination[4:11]

The output is as follows:

Francis’

Retrieve the first three letters of destination:

destination[0:3]

The output is as follows:

San...

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