Better Python Code: A Guide for Aspiring Experts by David Mertz Paperback Book

Description: FREE SHIPPING UK WIDE Better Python Code by David Mertz Move Beyond Python Code That "Mostly Works" to Code That Is Expressive, Robust, and Efficient Python is arguably the most-used programming language in the world, with applications from primary school education to workaday web development, to the most advanced scientific research institutes. While there are many ways to perform a task in Python, some are wrong, inelegant, or inefficient. Better Python Code is a guide to "Pythonic" programming, a collection of best practices, ways of working, and nuances that are easy to miss, especially when ingrained habits are borrowed from other programming languages. Author David Mertz presents concrete and concise examples of various misunderstandings, pitfalls, and bad habits in action. He explains why some practices are better than others, based on his 25+ years of experience as an acclaimed contributor to the Python community. Each chapter thoroughly covers related clusters of concepts, with chapters sequenced in ascending order of sophistication. Whether you are starting out with Python or are an experienced developer pushing through the limitations of your Python code, this book is for all who aspire to be more Pythonic when writing better Python code. Use the right kind of loops in PythonLearn the ins and outs of mutable and immutable objectsGet expert advice to avoid Python "gotchas"Examine advanced Python topicsNavigate the "attractive nuisances" that exist in PythonLearn the most useful data structures in Python and how to avoid misusing themAvoid security mistakesUnderstand the basics of numeric computation, including floating point numbers and numeric datatypes "My high expectations for this engaging Python book have been exceeded: it offers a great deal of insight for intermediate or advanced programmers to improve their Python skills, includes copious sharing of precious experience practicing and teaching the language, yet remains concise, easy to read, and conversational."--From the Foreword by Alex Martelli Register your book for convenient access to downloads, updates, and/or corrections as they become available. See inside book for details. FORMAT Paperback CONDITION Brand New Author Biography David Mertz has been a member of the Python community for 25 years. He has taught Python to scientists, developers coming from other languages, and to programming neophytes. He was a director of the Python Software Foundation (PSF) for six years and continues to serve on, or chair, a variety of PSF working groups. David is the author of several technical books and has given keynote addresses at numerous international programming conferences. Table of Contents Foreword xviiPreface xixAcknowledgments xxvAbout the Author xxvii Introduction 1 Chapter 1: Looping Over the Wrong Things 31.1 (Rarely) Generate a List for Iteration 31.2 Use enumerate() Instead of Looping Over an Index 61.3 Dont Iterate Over dict.keys() When You Want dict.items() 81.4 Mutating an Object During Iteration 91.5 for Loops Are More Idiomatic Than while Loops 121.6 The Walrus Operator for "Loop-and-a-Half" Blocks 131.7 zip() Simplifies Using Multiple Iterables 151.8 zip(strict=True) and itertools.zip_longest() 171.9 Wrapping Up 20 Chapter 2: Confusing Equality with Identity 212.1 Late Binding of Closures 212.2 Overchecking for Boolean Values 252.3 Comparing x == None 282.4 Misunderstanding Mutable Default Arguments 292.5 Copies versus References to Mutable Objects 332.6 Confusing is with == (in the Presence of Interning) 352.7 Wrapping Up 37 Chapter 3: A Grab Bag of Python Gotchas 393.1 Naming Things 393.2 Quadratic Behavior of Naive String Concatenation 523.3 Use a Context Manager to Open a File 563.4 Optional Argument key to .sort() and sorted() 593.5 Use dict.get() for Uncertain Keys 623.6 Wrapping Up 64 Chapter 4: Advanced Python Usage 674.1 Comparing type(x) == type(y) 674.2 Naming Things (Revisited) 714.3 Keep Less-Used Features in Mind 794.4 Type Annotations Are Not Runtime Types 984.5 Wrapping Up 105 Chapter 5: Just Because You Can, It Doesnt Mean You Should... 1075.1 Metaclasses 1075.2 Monkeypatching 1125.3 Getters and Setters 1155.4 Its Easier to Ask for Forgiveness Than Permission 1185.5 Structural Pattern Matching 1215.6 Regular Expressions and Catastrophic Backtracking 1235.7 Wrapping Up 126 Chapter 6: Picking the Right Data Structure 1296.1 collections.defaultdict 1296.2 collections.Counter 1326.3 collections.deque 1356.4 collections.ChainMap 1386.5 Dataclasses and Namedtuples 1416.6 Efficient Concrete Sequences 1466.7 Wrapping Up 150 Chapter 7: Misusing Data Structures 1537.1 Quadratic Behavior of Repeated List Search 1537.2 Deleting or Adding Elements to the Middle of a List 1577.3 Strings Are Iterables of Strings 1637.4 (Often) Use enum Rather Than CONSTANT 1667.5 Learn Less Common Dictionary Methods 1697.6 JSON Does Not Round-Trip Cleanly to Python 1747.7 Rolling Your Own Data Structures 1787.8 Wrapping Up 187 Chapter 8: Security 1898.1 Kinds of Randomness 1908.2 Putting Passwords or Other Secrets in "Secure" Source Code 1958.3 "Rolling Your Own" Security Mechanisms 1988.4 Use SSL/TLS for Microservices 2018.5 Using the Third-Party requests Library 2058.6 SQL Injection Attacks When Not Using DB-API 2088.7 Dont Use assert to Check Safety Assumptions 2128.8 Wrapping Up 215 Chapter 9: Numeric Computation in Python 2179.1 Understanding IEEE-754 Floating Point Numbers 2179.2 Numeric Datatypes 2289.3 Wrapping Up 239 Appendix: Topics for Other Books 241A.1 Test-Driven Development 241A.2 Concurrency 242A.3 Packaging 243A.4 Type Checking 243A.5 Numeric and Dataframe Libraries 244 Index 245 Review "Youll not just be aspiring to be an expert anymore after practicing through Better Python Code: A Guide for Aspiring Experts, youll be one of them! Learn from David Mertz, whos been making experts through his writing and training for the past 20 years."--Iqbal Abdullah, past Chair, PyCon Asia Pacific, and past board member, PyCon Japan "In Better Python Code: A Guide for Aspiring Experts, David Mertz serves up bite-sized chapters of Pythonic wisdom in this must-have addition to any serious Python programmers collection. This book helps bridge the gap from beginner to advanced Python user, but even the most seasoned Python programmer can up their game with Mertzs insight into the ins and outs of Python."--Katrina Riehl, President, NumFOCUS "What separates ordinary coders from Python experts? Its more than just knowing best practices--its understanding the benefits and pitfalls of the many aspects of Python, and knowing when and why to choose one approach over another. In this book David draws on his more than 20 years of involvement in the Python ecosystem and his experience as a Python author to make sure that the readers understand both what to do and why in a wide variety of scenarios."--Naomi Ceder, past Chair, Python Software Foundation "Like a Pythonic BBC, David Mertz has been informing, entertaining, and educating the Python world for over a quarter of a century, and he continues to do so here in his own pleasantly readable style."--Steve Holden, past Chair, Python Software Foundation "Being expert means someone with a lot of experience. Davids latest book provides some important but common problems that folks generally learn only after spending years of doing and fixing. I think this book will provide a much quicker way to gather those important bits and help many folks across the world to become better."--Kushal Das, CPython Core Developer and Director, Python Software Foundation "This book is for everyone: from beginners, who want to avoid hard-to-find bugs, all the way to experts looking to write more efficient code. David Mertz has compiled a great set of useful idioms that will make your life as a programmer easier and your users happier."--Marc-André Lemburg, past Chair, EuroPython, and past Director, Python Software Foundation Details ISBN0138320942 Author David Mertz ISBN-13 9780138320942 Format Paperback Country of Publication United States Subtitle A Guide for Aspiring Experts Pages 288 Publisher Pearson Education (US) Imprint Addison Wesley Place of Publication Boston Audience Professional & Vocational ISBN-10 0138320942 Year 2023 Publication Date 2023-12-05 US Release Date 2023-12-05 DEWEY 005.133 UK Release Date 2023-12-05 We've got this At The Nile, if you're looking for it, we've got it. With fast shipping, low prices, friendly service and well over a million items - you're bound to find what you want, at a price you'll love! 30 DAY RETURN POLICY No questions asked, 30 day returns! FREE DELIVERY No matter where you are in the UK, delivery is free. 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