By Warren Sande, Carter Sande
Summary
A mild yet thorough advent to the area of machine programming, it's written in language a 12-year-old can stick with, yet a person who desires to methods to software a working laptop or computer can use it. Even adults. Written via Warren Sande and his son, Carter, and reviewed by means of specialist educators, this ebook is kid-tested and parent-approved.
About This Book
Learn to speak for your computing device in its personal language! no matter if you need to create a online game, begin a company, or clear up a huge challenge, step one is studying to put in writing your individual courses. Programming is a enjoyable problem, and it's effortless to get started!
This up to date and revised variation of hi international! introduces the area of machine programming in a transparent and interesting sort. Written through Warren Sande and his son, Carter, it's choked with examples that would get you pondering and studying. Reviewed through specialist educators, this booklet is kid-tested and parent-approved. You don't want to know something approximately programming to take advantage of the ebook, simply the fundamentals of utilizing a working laptop or computer. in the event you can begin a application and store a dossier, you'll be off and running!
Purchase of the print publication encompasses a unfastened publication in PDF, Kindle, and ePub codecs from Manning Publications.
What'S Inside
• Explains ideas in transparent language
• plenty of photos, cartoons, and enjoyable examples
• whole set of perform questions and exercises
• Illustrated in complete color
• Hello World! makes use of Python, a programming language designed to be effortless to profit. utilizing enjoyable examples, it brings to lifestyles recommendations of computing— looping, judgements, enter and output, information constructions, graphics—and many more.
About the Authors
Warren Sande is an digital structures engineer who makes use of Python either as a "do anything" scripting language and with the intention to train pcs and programming. Carter Sande is a highschool pupil who's enthusiastic about expertise. whilst he's now not solving his school's community and aiding his classmates get well misplaced homework, he loves to trip his motorbike and write unfashionable video games.
Table of Contents
1. Getting Started
2. be mindful This: reminiscence and Variables
3. simple Math
4. forms of Data
5. Input
6. GUIs—Graphical person Interfaces
7. judgements, Decisions
8. Loop the Loop
9. only for You—Comments
10. online game Time
11. Nested and Variable Loops
12. accumulating issues Together—Lists and Dictionaries
13. Functions
14. Objects
15. Modules
16. Graphics
17. Sprites and Collision Detection
18. a brand new form of Input—Events
19. Sound
20. extra GUIs
21. Print Formatting and Strings
22. dossier enter and Output
23. Take a Chance—Randomness
24. computing device Simulations
25. Skier Explained
26. Python Battle
27. What's subsequent?
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Extra info for Hello World!: Computer Programming for Kids and Other Beginners (2nd Edition)
Sample text
When changing from a simple attribute to a method, all references to that attribute also need to be changed. To avoid this, programmers in these languages have adopted a standard practice of always creating methods for attribute access so that any changes to the underlying implementation won’t affect any existing code. It’s never fun to touch that much of your code for a change to how one attribute is accessed, so Python provides a different approach to the problem. Rather than requiring the object to be responsible for special access to its attributes, the attributes themselves can provide this behavior.
If the decorator is applied without any arguments, parentheses are still required in order for it to work at all properly. ceraj% The second example fails because we didn’t first call `a_kn]pa. Thus, all subsequent calls to paop send their arguments to `a_kn]pkn instead of paop. Since this is a mismatch, Python throws an error. This situation can be a bit difficult to debug because the exact exception that will be raised will depend on the function being wrapped. 31 32 C HAPTER 2 D JA NG O IS P YTHON A Decorator With or Without Arguments One other option for decorators is to provide a single decorator that can function in both of the previous situations: with arguments and without.
Interfaces to some of these are provided along with Django itself, so for many cases, the existing code and documentation will be sufficient to quickly get an application up and running. Later in this book, some additional utilities are covered, along with some tips on how to integrate them into a Django application. The possibilities aren’t limited to the options outlined in this book, so feel free to look around for Python utilities that will help support your business plan, and use the techniques listed in this book to integrate them into your application.