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Description

Regular expressions are used by many text editors, utilities, and programming languages to search and manipulate text based on patterns. They are considered the Swiss army knife of text processing. Powerful search, replacement, extraction and validation of strings, repetitive and complex tasks are reduced to a simple pattern using regular expressions. Mastering Python Regular Expressions will teach you about Regular Expressions, starting from the basics, irrespective of the language being used, and then it will show you how to use them in Python. You will learn the finer details of what Python supports and how to do it, and the differences between Python 2.x and Python 3.x. The book starts with a general review of the theory behind the regular expressions to follow with an overview of the Python regex module implementation, and then moves on to advanced topics like grouping, looking around, and performance. You will explore how to leverage Regular Expressions in Python, some advanced aspects of Regular Expressions and also how to measure and improve their performance. You will get a better understanding of the working of alternators and quantifiers. Also, you will comprehend the importance of grouping before finally moving on to performance optimization techniques like the RegexBuddy Tool and Backtracking. Mastering Python Regular Expressions provides all the information essential for a better understanding of Regular Expressions in Python.

What you will learn

Explore the regular expressions syntax

Improve the readability and future maintenance of the regex

Find solutions for typical problems with regular expressions

Familiarize yourself with match and search operations

Leverage the look around technique to create powerful regular expressions

Gain insight on the uses of Groups

Get to know how the regex engine works through the Backtracking process

Enhance the performance of your regular expressions

What do you get with eBook?

Instant access to your Digital eBook purchase

Download this book in EPUB and PDF formats

Access this title in our online reader with advanced features

DRM FREE - Read whenever, wherever and however you want

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Amazon verified reviews

New Media Aug 06, 2018

Great Learning tool.

Amazon Verified review

Javier Angulo Lucerón Jun 16, 2014

It's a really well written book, with tons of examples to allow you understand from the basics to the most advanced features. I'm starting to leverage regular expressions thanks to this book, quite recommended.

Doc Jun 19, 2018

I used this book to learn and master regular expressions in Python. It is easy to follow and if you study each chapter carefully you will master regular expressions. It starts out with a brief overview of regex and then transitions to specific application of regex in python. Also great to have as a desk reference.

Uncle Buck Sep 24, 2015

If you are getting started with regular expressions the first chapter of this book is worth the price of the book in itself.I cannot praise this book enough. The well written and clear examples are fantastic. I've been struggling with regular expressions for a while but this book is a god send. Thank you Felix Lopez!!!!!

DR Jan 05, 2020

A great, concise and thorough book on using Regex in Python. Excellent, thoroughly recommended.

Mastering Python Regular Expressions: For Python developers, this concise and down-to-earth guide to regular expressions

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