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)
2
Part I: Getting to Know Python
10
PART II: Algorithms and Circuits
14
PART III: Advanced Features and Libraries
19
References
20
Other Books You May Enjoy
Appendices
Appendix C: The Complete UniPoly Class
Appendix D: The Complete Guitar Class Hierarchy
Appendix F: Production Notes

8.6 Types of files

Files fall into two main types: text and binary. We can think of a text file as something that is humanly readable. It could be plain text with words, numbers, and punctuation. It could be an HTML file with all those, plus markup that tells us what the information means and how we should display it. The text file could contain code that you read, create, update, and extend in a programming editor. The information is likely in a Unicode encoding.

We read and write text files as strings, with newline characters separating individual lines. We might read and write the file as a list of strings or one long string.

Examples of binary files include photos, images, and videos. We don’t represent the data as characters in strings but as bytes. Each byte contains eight 0s and 1s. Instead of asking for the next line as you would for a text file, you ask for the next n bytes, for some n &gt...