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

7.5 Attributes and properties

Each polynomial created by UniPoly has an attribute named indeterminate and another for terms. These are the instance variables we defined. UniPoly also has attributes for each instance method that you define or that Python creates for you. If obj is a Python object, then dir(object) returns a list of attribute names.

"indeterminate" in dir(p)
"terms" in dir(p)
"__init__" in dir(p)

An instance variable is a read-write attribute, meaning that you can both get and set its value with “.” notation.

In your class design, you may wish to allow your users direct and public access to an instance variable. If you do not, prefix the variable’s name with two underscores “__”. Python will rename the variable internally and make it more difficult, but not impossible,...