By Jason R. Briggs

Fourth Printing

Python is a robust, expressive programming language that's effortless to profit and enjoyable to exploit! yet books approximately studying to application in Python may be form of boring, grey, and dull, and that's no enjoyable for anyone.

Python for children brings Python to existence and brings you (and your mom and dad) into the area of programming. The ever-patient Jason R. Briggs will consultant you thru the fundamentals as you scan with designated (and usually hilarious) instance courses that function starving monsters, mystery brokers, thieving ravens, and extra. New phrases are outlined; code is coloured, dissected, and defined; and quirky, full-color illustrations preserve issues at the lighter side.

Chapters finish with programming puzzles designed to stretch your mind and enhance your knowing. by way of the top of the booklet you'll have programmed entire video games: a a dead ringer for the recognized Pong and "Mr. Stick guy Races for the Exit"—a platform online game with jumps, animation, and masses more.

As you strike out in your programming experience, you'll find out how to:
* Use primary information constructions like lists, tuples, and maps
* arrange and reuse your code with features and modules
* Use keep watch over buildings like loops and conditional statements
* Draw shapes and styles with Python's turtle module
* Create video games, animations, and different graphical wonders with tkinter

Why may still severe adults have all of the enjoyable? Python for children is your price tag into the superb international of laptop programming.

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Extra resources for Python for Kids: A Playful Introduction to Programming

Example text

The operators (in, +, and *) and built-in functions (len, max, and min) operate on strings as they do on lists and tuples. Index and slice notation works the same for obtaining elements or slices but can’t be used to add, remove, or replace elements. sub(" ", x) 'live and let live' q The re module q provides regular expression functionality. It provides more sophisticated pattern extraction and replacement capability than the string module. The print function outputs strings. 72 w Objects are automatically converted to string representations for printing operator w provides a formatting capability similar to that of C’s sprintf.

When the method is invoked, self is set to the instance that invoked the method. Class Circle inherits from class Shape t. This is similar to but not exactly like a standard class variable y. A class must, in its initializer, explicitly call the initializer of its base class u. The __str__ method is used by the print function i. Other special attribute methods permit operator overloading or are employed by built-in methods such as the length (len) function. move(5,6) >>> print(c2) Circle of radius 5 at 15, 20) q coordinates (0, 0) w coordinates (15, 20) coordinates (20, 26) e The initializer is implicitly called, and a circle instance is created q.

5 >>> 5 // 2 2 >>> 5 % 2 1 >>> 2 ** 8 256 >>> 1000000001 ** 3 1000000003000000003000000001 1 q w e The Python documentation and this book use the term object to refer to instances of any Python data type, not just what many other languages would call class instances. This is because all Python objects are instances of one class or another. x), and division of integers with // w results in truncation. Note that integers are of unlimited size e; they will grow as large as you need them to. 0 q Complex numbers consist of both a real element and an imaginary element, suffixed with a j.

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