Book Image

Modern Python Cookbook - Second Edition

By : Steven F. Lott
Book Image

Modern Python Cookbook - Second Edition

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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Using pathlib to work with filenames

Most operating systems use a hierarchical path to identify a file. Here's an example filename, including the entire path:

/Users/slott/Documents/Writing/Python Cookbook/code

This full pathname has the following elements:

  • The leading / means the name is absolute. It starts from the root of the directory of files. In Windows, there can be an extra letter in front of the name, such as C:, to distinguish between the directories on individual storage devices. Linux and macOS treat all the devices as a unified hierarchy.
  • The names Users, slott, Documents, Writing, Python Cookbook, and code represent the directories (or "folders," as a visual metaphor) of the filesystem. The path names a top-level Users directory. This directory is expected to contain the slot subdirectory. This is true for each name in the path.
  • / is a separator between directory names. The Windows OS uses \ to separate items on the...