Book Image

Dancing with Python

By : Robert S. Sutor
Book Image

Dancing with Python

By: Robert S. Sutor

Overview of this book

Dancing with Python helps you learn Python and quantum computing in a practical way. It will help you explore how to work with numbers, strings, collections, iterators, and files. The book goes beyond functions and classes and teaches you to use Python and Qiskit to create gates and circuits for classical and quantum computing. Learn how quantum extends traditional techniques using the Grover Search Algorithm and the code that implements it. Dive into some advanced and widely used applications of Python and revisit strings with more sophisticated tools, such as regular expressions and basic natural language processing (NLP). The final chapters introduce you to data analysis, visualizations, and supervised and unsupervised machine learning. By the end of the book, you will be proficient in programming the latest and most powerful quantum computers, the Pythonic way.
Table of Contents (29 chapters)
Part I: Getting to Know Python
PART II: Algorithms and Circuits
PART III: Advanced Features and Libraries
Other Books You May Enjoy
Appendix C: The Complete UniPoly Class
Appendix D: The Complete Guitar Class Hierarchy
Appendix F: Production Notes

Working with Files

Follow your own path, and let people talk.

—Dante Alighieri

Files provide persistent storage of information. If you want data to be available for longer than the length of time it takes your app to run, perhaps even years, you store that data in files. A physical storage device might be a hard disk drive (HDD), solid-state drive (SSD), or a flash drive in today’s phones, laptops, and servers.

This book doesn’t cover how the physical devices work or low-level software access to the hardware. Instead, in this chapter, we look at the abstraction of storing and retrieving information with files. We group files into directories or folders, which may be nested. The files and the folders constitute the file system. The operating system manages the file system and is one of the OS’s most essential roles.

Topics covered in this chapter