Download E-books Python for Kids: A Playful Introduction to Programming PDF

By Jason R. Briggs

For children elderly 10+ (And Their Parents)

The code during this publication runs on nearly something: home windows, Mac, Linux, even an OLPC computer or Raspberry Pi!

Python is a strong, expressive programming language that is effortless to profit and enjoyable to take advantage of! yet books approximately studying to software in Python may be form of uninteresting, grey, and dull, and that is no enjoyable for anyone.

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

Chapters finish with programming puzzles designed to stretch your mind and boost your knowing. through the top of the e-book you will have programmed whole video games: a the image of the well-known 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 event, you will find out how to:

  • Use primary information constructions like lists, tuples, and maps
  • Organize and reuse your code with features and modules
  • Use keep watch over constructions 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 the entire enjoyable? Python for Kids is your price tag into the superb international of computing device programming.

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Images_right[self. current_image]) def coords(self): xy = self. video game. canvas. coords(self. picture) self. coordinates. x1 = xy[0] self. coordinates. y1 = xy[1] self. coordinates. x2 = xy[0] + 27 self. coordinates. y2 = xy[1] + 30 go back self. coordinates after we created the sport category in bankruptcy sixteen, one of many item variables used to be the canvas. At , we use the coords functionality of this canvas variable, with self. video game. canvas. coords, to come back the x and y positions of the present picture. This functionality makes use of the quantity kept within the item variable photo, the identifier for the picture drawn at the canvas. We shop the ensuing checklist within the variable xy, which now comprises values: the top-left x place saved because the x1 variable of coordinates at , and the top-left y place kept because the y1 variable of coordinates at. simply because the entire stick determine pictures we created are 27 pixels vast through 30 pixels excessive, we will be able to be sure what the x2 and y2 variables could be via including the width at and the peak at to the x and y numbers, respectively. ultimately, at the final line of the functionality, we go back the article variable coordinates. Making the Stick determine circulate the ultimate functionality of the StickFigureSprite category, circulation, is in control of truly relocating our video game personality round the reveal. It must also have the capacity to let us know while the nature has ran into anything. beginning the movement functionality Here’s the code for the 1st a part of the circulate function—this will cross after coords : def coords(self): xy = self. video game. canvas. coords(self. snapshot) self. coordinates. x1 = xy[0] self. coordinates. y1 = xy[1] self. coordinates. x2 = xy[0] + 27 self. coordinates. y2 = xy[1] + 30 go back self. coordinates def move(self): self. animate() if self. y < zero: self. jump_count += 1 if self. jump_count > 20: self. y = four if self. y > zero: self. jump_count -= 1 At , this a part of the functionality calls the animate functionality we created previous during this bankruptcy, which adjustments the presently displayed picture if useful. At , we see no matter if the worth of y is lower than zero. whether it is, we all know that the stick determine is leaping simply because a unfavorable worth will movement him up the reveal. (Remember that zero is on the best of the canvas, and the ground of the canvas is pixel place 500. ) At , we upload 1 to jump_count, and at , we are saying that if the price of jump_count reaches 20, we must always swap y to four to begin the stick determine falling back (). At , we see if the worth of y is bigger than zero (meaning the nature has to be falling), and whether it is, we subtract 1 from jump_count simply because as soon as we’ve counted as much as 20, we have to count number backtrack back. (Move your hand slowly up within the air whereas counting to twenty, then stream it go into reverse back whereas counting down from 20, and you’ll get a feeling of the way calculating the stick determine leaping up and down is meant to paintings. ) within the following few traces of the stream functionality, we name the coords functionality, which tells us the place our personality is at the reveal and shops its lead to the variable co. We then create the variables left, correct, most sensible, backside, and falling.

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