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
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Appendix C: The Complete UniPoly Class
Appendix D: The Complete Guitar Class Hierarchy
Appendix F: Production Notes

7.2 Classes, methods, and variables

A class is a Python object that creates other objects, known as instances of the class. We also say that a class instantiates new objects of its type. Its creation syntax is similar to that of a function definition, except we use class instead of def. A class can be “parameterized,” and we discuss this in section 7.13 when we consider inheritance.

We begin by defining a class, UniPoly, that creates a univariate monomial from a coefficient, indeterminate, and exponent. We implement a preliminary way to display these polynomials, but we do not yet allow any algebraic operations. The code for the final version of UniPoly that we develop in this chapter is in Appendix C.

class UniPoly:
    # UniPoly creates univariate polynomials with integer coefficients
    # Version 1

    def __init__(self, coefficient, indeterminate, exponent):
        # Create a...