Below you’ll see some python code which will draw five different 5 pointed stars. It’s horrible inefficient and needs to be optimised to do the same thing in fewer lines.
Ctrl + Enter to run the code.
Here’s how the code works:
Lines 1-5 set up the python turtle graphics module for drawing the stars.
Lines 6-16 draws a single 5 pointed star. These lines are repeated almost exactly to draw the other 4 stars.
Start by running the code.
- Make a procedure called
draw_starwhich lets you draw a star at any position
You will need to use
defto define a procedure. The procedure will need two parameters to set the
ycoordinates of the star.
- Use a
forloop to draw each of the 5 points of each star
right(144)instructions are repeated 5 times for each star. Put these inside a for loop to reduce the number of lines of code required to draw the star
- Add a third parameter to your
draw_starprocedure so that you can change the size of each star
At the moment each star is the same size (20 pixels). Change the procedure definition to accept three parameters (
On the next page you’ll get some code with both syntax and logic errors
KPRIDE stands for Keywords, Predict, Run, Investigate, Debug and Extend and it’s a way of helping you explore and understand python code. Click on the image below for a set of KPRIDE activities for this python skill.
Page 1: Intro
Page 2: The theory: learn what you need to know as fast as possible.
Page 3: Try it: try out and adapt some working python code snippets.
Page 4: Debug it: Learn how to find and fix common mistakes.
Page 5: Extend it: Choose a project idea to use your newfound python skills.