You're reading from Dancing with Python Learn to code with Python and Quantum Computing

Product type Paperback

Published in Aug 2021

Publisher Packt

ISBN-13 9781801077859

Length 744 pages

Edition 1st Edition

Languages

Python

Concepts

Programming Language

Author (1):

Robert S. Sutor

View More author details

Table of Contents (29) Chapters

Preface

1. Chapter 1: Doing the Things That Coders Do

2. Part I: Getting to Know Python FREE CHAPTER

3. Chapter 2: Working with Expressions

4. Chapter 3: Collecting Things Together

5. Chapter 4: Stringing You Along

6. Chapter 5: Computing and Calculating

7. Chapter 6: Defining and Using Functions

8. Chapter 7: Organizing Objects into Classes

9. Chapter 8: Working with Files

10. PART II: Algorithms and Circuits

11. Chapter 9: Understanding Gates and Circuits

12. Chapter 10: Optimizing and Testing Your Code

13. Chapter 11: Searching for the Quantum Improvement

14. PART III: Advanced Features and Libraries

15. Chapter 12: Searching and Changing Text

16. Chapter 13: Creating Plots and Charts

17. Chapter 14: Analyzing Data

18. Chapter 15: Learning, Briefly

19. References

20. Other Books You May Enjoy

21. Index

Appendices

1. Appendix A: Tools

2. Appendix B: Staying Current

3. Appendix C: The Complete UniPoly Class

4. Appendix D: The Complete Guitar Class Hierarchy

5. Appendix E: Notices

6. Appendix F: Production Notes

7.9 Enumerations

Bob’s Bakery Bistro makes and sells four kinds of cookies: chocolate, sugar, oatmeal, and shortbread. Bob hires ace coder Will to write a new cookie inventory application for the bistro using Python.

How should Will represent the cookies? One way is to use global constants.

CHOCOLATE_COOKIE = 0
SUGAR_COOKIE = 1
OATMEAL_COOKIE = 2
SHORTBREAD_COOKIE = 3

COOKIE_NAMES = [
    "chocolate",
    "sugar",
    "oatmeal",
    "shortbread"
]

It’s easy to get the name if you have the cookie constant:

COOKIE_NAMES[SUGAR_COOKIE]

'sugar'

It’s less obvious how to go from the name to the cookie constant unless we make some assumptions about positions and indices. You can easily introduce bugs into your code if you start adding more kinds of cookies.

It would be nice to have a simpler and class-oriented way of doing this in Python. This...