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Modern Python Cookbook

Modern Python Cookbook

By : Steven F. Lott
4.8 (15)
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Modern Python Cookbook

Modern Python Cookbook

4.8 (15)
By: Steven F. Lott

Overview of this book

Python is the preferred choice of developers, engineers, data scientists, and hobbyists everywhere. It is a great language that can power your applications and provide great speed, safety, and scalability. It can be used for simple scripting or sophisticated web applications. By exposing Python as a series of simple recipes, this book gives you insight into specific language features in a particular context. Having a tangible context helps make the language or a given standard library feature easier to understand. This book comes with 133 recipes on the latest version of Python 3.8. The recipes will benefit everyone, from beginners just starting out with Python to experts. You'll not only learn Python programming concepts but also how to build complex applications. The recipes will touch upon all necessary Python concepts related to data structures, object oriented programming, functional programming, and statistical programming. You will get acquainted with the nuances of Python syntax and how to effectively take advantage of it. By the end of this Python book, you will be equipped with knowledge of testing, web services, configuration, and application integration tips and tricks. You will be armed with the knowledge of how to create applications with flexible logging, powerful configuration, command-line options, automated unit tests, and good documentation.
Table of Contents (18 chapters)
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16
Other Books You May Enjoy
17
Index

Reversing a copy of a list

Once in a while, we need to reverse the order of the items in a list collection. Some algorithms, for example, produce results in a reverse order. We'll look at the way numbers converted into a specific base are often generated from least-significant to most-significant digit. We generally want to display the values with the most-significant digit first. This leads to a need to reverse the sequence of digits in a list.

We have three ways to reverse a list. First, there's the reverse() method. We can also use the reversed() function, as well as a slice that visits items in reverse order.

Getting ready

Let's say we're doing a conversion among number bases. We'll look at how a number is represented in a base, and how we can compute that representation from a number.

Any value, v, can be defined as a polynomial function of the various digits, dn, in a given base, b:

A rational number has a finite...

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