12. Reading exercise

Remember the following?

Important

Rule # 2

Write your computer programs to make them easy for people to read and understand.

Can you figure out on your own what the following program does, without copying it in the editor and having Reeborg obey the instructions?:

def a():
    turn_left()
    turn_left()

def b():
    turn_left()
    a()

def c():
    move()
    move()

def d():
    c()
    b()

def e():
    d()
    d()
    d()
    d()

turn_left()
e()
b()

Not so easy, is it?

Test it!

Once you think you have figured out what the above code does, copy it in the editor and run it to confirm your understanding.

This should help you to understand why it is important to write programs for humans, by choosing function names that are meaningful.