9.4.2. Practice: Functions

Create a function called say_goodbye which displays the text “Goodbye!”

# TODO: enter your code here

Write code that calls the function say_goodbye

# TODO: enter your code here

Redefine the function say_goodbye to take a parameter called name, and have it display “Goodbye name!” where “name” is replaced by whatever was in the name variable

# TODO: enter your code here

Write code that calls the function say_goodbye but with your name as a parameter

# TODO: enter your code here

Try out the code below which counts from 0 to 4 slowly:

import time # We need the time library for the following examples

for i in range(5):
    print(i)
    time.sleep(1)

0

1

2

3

4

We can put that for loop in a function like this:

def counter():
    for i in range(5):
        print(i)
        time.sleep(1)

And then we can call it:

counter()

0

1

2

3

4

Now redifine counter by

1. copying the code above which defines counter

2. make the counter take a parameter called max

3. Have the range call use the parameter max

# TODO: enter your code here

Now try calling the new version of counter but passing it the argument 7

# TODO: enter your code here

Create a function called multiply which takes two arguments, multiplies them together (*), and then returns the multiplied value

# TODO: enter your code here

Call the mutliply function with two numbers and save the result in a variable. Then print out the variable to see that the multiplied number was saved.

# TODO: enter your code here