Steven F. Lott - Python Essentials - A Rapid Guide to the Fundamental Features of Python
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- Book:Python Essentials - A Rapid Guide to the Fundamental Features of Python
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- Learn how to write effective Python code
- Get up-to-speed with the most important data structures in Python, using sequences, sets, and mappings
- Explore Pythons impressive range of features and discover why its one of the most popular programming languages in the world
Python Essentials provides a vital tour of the most critical features of Python. Starting with setup and installation, you will soon dive into exploring built-in-library types, Pythons rich collection of operators and built-in functions, variables, assignment and scoping rules.
From this foundation, you will explore functions, a crucial aspect of any programming language, including considerable sophistication in defining parameters to a function and providing argument values. Explore advanced functional programming using generator expressions, comprehensions, and generator functions. Handle file input and output using web services and context managers, exception handling and explore wider, popular frameworks.
Through this concise and practical guide, you will explore all you need to know to leverage this powerful, and industry-standard, programming language.
What you will learn- Use Python interactively and master the art of writing efficient Python scripts
- Learn techniques for working with string data, including how to use regular expressions to parse strings
- Get to know how the short-circuit and if-else logic operators work
- Explore mutable data structures including list, set, and dict
- Define functions with positional and optional parameters, and learn to use keyword argument values when calling a function
- Write generator functions, generator expressions, and comprehensions
- Master the use of exceptions for handling errors and other unexpected conditions
- Understand the importance of working with files, context manager, and the with statement
Steven F. Lott has been programming since the 70s, when computers were large, expensive, and rare. As a contract software developer and architect, he has worked on hundreds of projects, from very small to very large. Hes been using Python to solve business problems for over 10 years
Table of Contents- Getting Started
- Simple Data Types
- Expressions and Output
- Variables, Assignment and Scoping Rules
- Logic, Comparisons, and Conditions
- More Complex Data Types
- Basic Function Definitions
- More Advanced Functions
- Exceptions
- Files, Databases, Networks, and Contexts
- Class Definitions
- Scripts, Modules, Packages, Libraries, and Applications
- Metaprogramming and Decorators
- Fit and Finish Unit Testing, Packaging, and Documentation
- Next Steps
Steven F. Lott: author's other books
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Copyright 2015 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.
Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.
First published: June 2015
Production reference: 1250615
Published by Packt Publishing Ltd.
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Birmingham B3 2PB, UK.
ISBN 978-1-78439-034-1
www.packtpub.com
Author
Steven F. Lott
Reviewers
Amoatey Harrison
Alessio Di Lorenzo
Dr. Philip Polstra
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Cover Work
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Steven F. Lott has been programming since the 70s, when computers were large, expensive, and rare. As a contract software developer and architect, he has worked on hundreds of projects, from very small to very large. He's been using Python to solve business problems for over 10 years.
He's particularly adept at struggling with thorny data representation problems.
He has also authored Mastering Object-oriented Python by Packt Publishing.
He is currently a technomad who lives in various places on the east coast of the US. His technology blog can be found at http://slott-softwarearchitect.blogspot.com.
Amoatey Harrison is a Python programmer with a passion for building software systems to solve problems. When he is not programming, he plays video games, swims, or simply hangs out with friends.
After graduating from the Kwame Nkrumah University of Science and Technology with a degree in computer engineering, he is currently doing his national service at the GCB Bank head office in Accra, Ghana. He also helped review a book on Python programming, Functional Python Programming,Packt Publishing , which was published in January 2015.
He would like to think of himself as a cool nerd.
Alessio Di Lorenzo is a marine biologist and has an MSc in geographical information systems (GIS) and remote sensing. Since 2006, he has been dealing with the analysis and development of GIS applications dedicated to the study and spread of environmental and epidemiological data. He is experienced in the use of the main proprietary and open source GIS software and programming languages.
He has coauthored OpenLayers Starter and reviewed ArcPy and ArcGIS Geospatial Analysis with Python , both by Packt Publishing.
Dr. Philip Polstra (known as Dr. Phil to his friends) is an associate professor of digital forensics in the Department of Math and Digital Sciences at Bloomsburg University of Pennsylvania. He teaches forensics, information security, and penetration testing. His research over the last few years has been on the use of microcontrollers and small computer boards (such as the BeagleBone Black) for forensics and penetration testing.
He is an internationally recognized hardware hacker. His work has been presented at numerous conferences across the globe, including repeat performances at Black Hat, DEFCON, 44CON, B-sides, GrrCON, ForenSecure, and other top conferences. He has also provided training on forensics and security, both in person and online via http://www.pentesteracademy.com and other training sites.
He has published a number of books, including Hacking and Penetration Testing with Low Power Devices , Syngress , and Linux Forensics from A to Z , PAP . He has also been a technical editor or reviewer on numerous books.
When not teaching or speaking at a conference, he is known to build electronics with his children, fly airplanes, and also teach others how to fly and build airplanes. His latest happenings can be found on his blog at http://philpolstra.com.
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Python programming should be expressive and elegant. In order for this to be true, the language itself must be easy to learn and easy to use. Any practical languageand its associated librariescan present a daunting volume of information. In order to help someone learn Python, we've identified and described those features that seem essential.
Learning a language can be a long voyage. We'll pass numerous islands, archipelagos, inlets, and estuaries along the route. Our objective is to point out the key features that will be passed during the initial stages of this journey.
The concepts of data structures and algorithms are ever-present considerations in programming. Our overall approach is to introduce the various Python data structures first. As part of working with a given class of objects, the language statements are introduced later. One of Python's significant advantages over other languages is the rich collection of built-in data types. Selecting an appropriate representation of data can lead to elegant, high-performance applications.
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