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

2.5 True and False

In section 1.1, we saw how you could treat the bits 0 and 1 like the Booleans false and true. In Python, we represent these as False and True.

The not operator inverts them.

not True
not False

2.5.1 Equality testing

Recall that we use “==” to compare whether two things are equal. Remember: assignment uses “=” and equality testing uses “==”.

a = 10
-a == -10
a == "10"

The last expression shows that the string "10" is not the same as the number 10. We can, however, create the string representation of a number.

str(a) == "10"

To test if two things are not equal, use “!=”.

"London" != "london"

2.5.2 “and”,...