In addition to giving a strong foundation in the language itself, Lubanovic shows how to use it for a range of applications in business, science, and the arts, drawing on the rich collection of open source packages developed by Python fans.It's impressive how many commercial and production-critical programs are written now in Python. Developed to be easy to read and maintain, it has proven a boon to anyone who wants applications that are quick to write but robust and able to remain in production for the long haul.This book focuses on the current version of Python, 3.x, while including sidebars about important differences with 2.x for readers who may have to deal with programs in that version.

    This jargon-free guide covers JavaScript basics and shows you how to save time and effort with the jQuery library of prewritten JavaScript code. You’ll soon be building web pages that feel and act like desktop programs, without having to do much programming.The important stuff you need to know:Make your pages interactive. Create JavaScript events that react to visitor actions.Use animations and effects. Build drop-down navigation menus, pop-ups, automated slideshows, and more.Improve your user interface. Learn how the pros make websites fun and easy to use.Collect data with web forms. Create easy-to-use forms that ensure more accurate visitor responses.Add a dash of Ajax. Enable your web pages to communicate with a web server without a page reload.Practice with living examples. Get step-by-step tutorials for web projects you can build yourself.

    As traffic volume and data demands increase, these applications become more complicated and brittle, exposing risks and compromising availability. This practical guide shows IT, devops, and system reliability managers how to prevent an application from becoming slow, inconsistent, or downright unavailable as it grows.Scaling isn't just about handling more users; it's also about managing risk and ensuring availability. Author Lee Atchison provides basic techniques for building applications that can handle huge quantities of traffic, data, and demand without affecting the quality your customers expect.In five parts, this book explores:Availability: learn techniques for building highly available applications, and for tracking and improving availability going forwardRisk management: identify, mitigate, and manage risks in your application, test your recovery/disaster plans, and build out systems that contain fewer risksServices and microservices: understand the value of services for building complicated applications that need to operate at higher scaleScaling applications: assign services to specific teams, label the criticalness of each service, and devise failure scenarios and recovery plansCloud services: understand the structure of cloud-based services, resource allocation, and service distribution

    

    It is through developing a self-reliant mindset, having essential survival gear and a handful of critical skills, that you and your family will be able to prevail in an urban crisis. Jammed with field-tested information from real-world applications, survival instructor Tony Nester covers how to prepare for both short-term survival ranging from 24-72 hours as well as long-term situations resulting from a grid-down emergency or pandemic. When the Grid Goes Down will show you how to make your home and lifestyle more self-sufficient and the critical gear needed along the way. Topics include: The 6 Key Areas for Creating a Self-Reliant Home, Water Storage and Purification Methods, Alternative Water Sources At Home, Creating a Water Map for Your Region, The 3 Essential Food Types to Stock Up On, Designing an Off-Grid Medical Kit, Home Security and Personal Defense Measures, Safeguarding the Exterior and Interior of Your Home, Heating, Cooling and Lighting When the Power Goes Out, and Alternative Sanitation and Hygiene Methods.

    And they did it without fanfare or recognition from their employer. Hiltzik's Dealers of Lightning provides a fascinating look at technohistory that sets the record straight. In Dealers of Lightning, Hiltzik describes the forces and faces behind the revolution that the Xerox PARC team single-handedly spawned. The Xerox PARC group was composed solely of top technical minds. The decision was made at Xerox headquarters to give the team complete freedom from deadlines and directives, in hopes of fostering a true creative environment. It worked — perhaps too well. The team responded with a steady output of amazing technology, including the first version of the Internet, the first personal computer, user-friendly word-processing programs, and pop-up menus. Xerox, far from ready for the explosion of innovation, failed to utilize the technology dreamed up by the group. Out of all the dazzling inventions born at Xerox PARC, only a handful were developed and marketed by Xerox. However, one of these inventions, the laser printer, proved successful enough to earn billions for the company, therefore justifying its investment in the research center. Most oftheteam's creations would go on to be developed and perfected by other companies, such as IBM, Apple, and Microsoft. Drawing from interviews with the engineers, executives, and scientists involved in the Xerox PARC, Dealers of Lightning chronicles an amazing era of egos, ideas, and inventions at the dawn of the computer age.

    Sold in over 85 countries and translated into more than 5 languages.---------------Want to get started on data science?Our promise: no math added.This book has been written in layman's terms as a gentle introduction to data science and its algorithms. Each algorithm has its own dedicated chapter that explains how it works, and shows an example of a real-world application. To help you grasp key concepts, we stick to intuitive explanations and visuals.Popular concepts covered include:- A/B Testing- Anomaly Detection- Association Rules- Clustering- Decision Trees and Random Forests- Regression Analysis- Social Network Analysis- Neural NetworksFeatures:- Intuitive explanations and visuals- Real-world applications to illustrate each algorithm- Point summaries at the end of each chapter- Reference sheets comparing the pros and cons of algorithms- Glossary list of commonly-used termsWith this book, we hope to give you a practical understanding of data science, so that you, too, can leverage its strengths in making better decisions.

    Radical Frugality tells the story of 5 people who did it: Paul, 27, discovering how to overcome student loan debt; David and Winona, late 40's, living their retirement dream today; and Dan and Charlotte, family of 4, with an underwater mortgage. Waking up every morning debt-free with cash in your pocket helps your brain feel safe, secure, and smart. Embracing the concepts in this book frees you from the overwhelming anxiety of the consumer lifestyle by showing you how to take control. You can start today. What if you could spend 66% less money than you spend today setting yourself up to live a self-determined lifestyle doing exactly what you love to do regardless of financial compensation? Radical Frugality shows you exactly how to achieve those goals within one to five years. Using our step-by-step common sense plan, we teach you what to do (break the spell of the consumer credit con), when to do it (planning and preparation), and most importantly where to do it (discover the 5 top cities for living frugally). We'll help you evaluate your financial situation. Are you in the Yellow Zone, the Orange Zone, the Red Zone, or even the Dead Zone (paying debt with debt)? This book lays out a plan for how to pay off your debt and get into the Neutral Zone (getting back to monthly break-even), the Green Zone (debt free with $1,000 a month free cash-flow) or even the Golden Zone (living a self-determined life). Whether you are desperate right now about your financial situation, facing retirement, just starting out, or just plain tired and worn-out from struggling to pay bills, Radical Frugality can show you over 100 tips for feeling better today. Radical Frugality offers a soup to nuts plan for living a self-determined life that will leave you happier and healthier than ever before. CHAPTER ONE: IT'S NOT ABOUT WHAT YOU EARN—IT'S ABOUT WHAT YOU SPEND. HOW TO TAKE CONTROL CHAPTER TWO: THE CONSUMER CREDIT CON. HOW MARKETERS PLAY TRICKS ON YOUR BRAIN CHAPTER THREE: WHY FRUGALITY? GETTING STRAIGHT ABOUT WHY YOU'RE ON THE PLANET CHAPTER FOUR: WHO ARE YOU TODAY? EVALUATE YOUR SPENDING PROFILE CHAPTER FIVE: HOW TO DO IT. YOUR STEP BY STEP PLAN TO GAIN CONTROL CHAPTER SIX: GOING GREEN AND NEVER LOOKING BACK. THIS IS YOUR BRAIN ON CASH CHAPTER SEVEN: WHEN WILL YOU BE READY? LEARNING TO ASK THE RIGHT QUESTIONS CHAPTER EIGHT: LIVING THE DREAM. WHERE YOU LIVE DETERMINES HOW YOU LIVE

    Men look to be of service. Emmy Award–nominated actor best known for his role on Queen Sugar and transformational speaker Dondré Whitfield challenges us to be real men in this provocative look at the power found in serving others.Too many males abuse the power they have.Often those males grow up without healthy role models and so, while they look like men, they act like boys. Only now there are adult consequences to their actions.And many of us are caught in the shifting cultural ideas about manhood, unsure of how to make sound decisions or truly be a man. Every day we find evidence that the role of men at home, at work, and out in the world is deeply misinterpreted.In Male vs. Man, Dondré Whitfield equips us to become men rather than simply "grown males." Men are healthy and productive servant-leaders who bring positive change to their communities. Males are self-serving and stuck in negative cycles that we hear and read about daily. They create chaos instead of cultivating calm.Male vs. Man is an uplifting playbook for men who want to level up. It will help men and women alike understand what real manhood is, based on biblical wisdom as well as hard-earned lessons from someone who has been there. With practical guidance and a strong spiritual foundation, Dondré shows how to cultivate the life-changing spiritual, emotional, and psychological attributes of servant leadership at home, at work, and in our communities.

    In this one-of-a-kind account, you'll see how the developers responsible for these flaws patched the bugs—or failed to respond at all. As you follow Klein on his journey, you'll gain deep technical knowledge and insight into how hackers approach difficult problems and experience the true joys (and frustrations) of bug hunting.Along the way you'll learn how to:Use field-tested techniques to find bugs, like identifying and tracing user input data and reverse engineering Exploit vulnerabilities like NULL pointer dereferences, buffer overflows, and type conversion flaws Develop proof of concept code that verifies the security flaw Report bugs to vendors or third party brokersA Bug Hunter's Diary is packed with real-world examples of vulnerable code and the custom programs used to find and test bugs. Whether you're hunting bugs for fun, for profit, or to make the world a safer place, you'll learn valuable new skills by looking over the shoulder of a professional bug hunter in action.

    We'll use the world's most popular functional programming language: JavaScript. Some may feel this is a poor choice as it's against the grain of the current culture which, at the moment, feels predominately imperative. However, I believe it is the best way to learn FP for several reasons:You likely use it every day at work.This makes it possible to practice and apply your acquired knowledge each day on real world programs rather than pet projects on nights and weekends in an esoteric FP language.We don't have to learn everything up front to start writing programs.In a pure functional language, you cannot log a variable or read a DOM node without using monads. Here we can cheat a little as we learn to purify our codebase. It's also easier to get started in this language since it's mixed paradigm and you can fall back on your current practices while there are gaps in your knowledge.The language is fully capable of writing top notch functional code.We have all the features we need to mimic a language like Scala or Haskell with the help of a tiny library or two. Object-oriented programming currently dominates the industry, but it's clearly awkward in JavaScript. It's akin to camping off of a highway or tap dancing in galoshes. We have to bind all over the place lest this change out from under us, we don't have classes[^Yet], we have various work arounds for the quirky behavior when the new keyword is forgotten, private members are only available via closures. To a lot of us, FP feels more natural anyways.That said, typed functional languages will, without a doubt, be the best place to code in the style presented by this book. JavaScript will be our means of learning a paradigm, where you apply it is up to you. Luckily, the interfaces are mathematical and, as such, ubiquitous. You'll find yourself at home with swiftz, scalaz, haskell, purescript, and other mathematically inclined environments.

    Designed for readers who don't need the academic formality, it's a fast and easy computer science guide. It teaches essential concepts for people who want to program computers effectively. First, it introduces discrete mathematics, then it exposes the most common algorithms and data structures. It also shows the principles that make computers and programming languages work.

    If you have received one of these copies, please contact the Pragmatic Bookshelf at support@pragprog.com, and we will replace it for you.Algorithms and data structures are much more than abstract concepts. Mastering them enables you to write code that runs faster and more efficiently, which is particularly important for today's web and mobile apps. This book takes a practical approach to data structures and algorithms, with techniques and real-world scenarios that you can use in your daily production code. Graphics and examples make these computer science concepts understandable and relevant. You can use these techniques with any language; examples in the book are in JavaScript, Python, and Ruby.Use Big O notation, the primary tool for evaluating algorithms, to measure and articulate the efficiency of your code, and modify your algorithm to make it faster. Find out how your choice of arrays, linked lists, and hash tables can dramatically affect the code you write. Use recursion to solve tricky problems and create algorithms that run exponentially faster than the alternatives. Dig into advanced data structures such as binary trees and graphs to help scale specialized applications such as social networks and mapping software. You'll even encounter a single keyword that can give your code a turbo boost. Jay Wengrow brings to this book the key teaching practices he developed as a web development bootcamp founder and educator.Use these techniques today to make your code faster and more scalable.

    It presents a learning journey, not definitive guidance. It describes the experiences of a development team with no prior CQRS proficiency in building, deploying (to Windows Azure), and maintaining a sample real-world, complex, enterprise system to showcase various CQRS and ES concepts, challenges, and techniques.The development team did not work in isolation; we actively sought input from industry experts and from a wide group of advisors to ensure that the guidance is both detailed and practical.The CQRS pattern and event sourcing are not mere simplistic solutions to the problems associated with large-scale, distributed systems. By providing you with both a working application and written guidance, we expect you’ll be well prepared to embark on your own CQRS journey.

    It really is cheap and easy with a simple solid fuel furnace. Here are plans to build the melting furnace and instructions for basic pattern making and molding to get your shop project under way. Charcoal is the fuel and aluminum and zinc alloys are the metals to cast. None of the pulsation or roar associated with gas fired furnaces. Build your own molding bench and flasks. Make your own melting pots and most of the simple tools required. Discover how cheap and easy it is. Even if you already have a lathe and other equipment this simple foundry setup will greatly expand the capacity of your shop by providing you with a supply of cheap castings for your projects. Discover why so many shop hands say "Metal Casting has opened a whole new world of shop experience". Heavily illustrated with many photographs that will show you step - by - step how to build a foundry.