Syntax: Functions in Python

Practice: Greeting User Function

1. Define a function named greet_user.

2. Inside the function, use the print function to output the string "Hello, user!".

3. After the function definition, call your greet_user function.

4. Run your code and confirm that the output is "Hello, user!".

> "Hello, user!"

def greet_user():
    print("Hello, user!")
greet_user()

Practice: Function to Print a Favorite Quote

1. Define a function named favorite_quote.

2. Inside the function, use the print function to output your favorite quote.

3. After the function definition, call your favorite_quote function.

4. Run your code and confirm that the output is your favorite quote.

> "The only way to do great work is to love what you do." - Steve Jobs

def favorite_quote():
    print('"The only way to do great work is to love what you do." - Steve Jobs')
favorite_quote()

Practice: Function to Print a List of Fruits

1. Define a function named print_fruits.

2. Inside the function, define a list with the names of some fruits.

3. Also in the function, use a for loop to print each fruit in the list.

4. After the function definition, call your print_fruits function.

5. Run your code and confirm that the output is a list of fruits, each printed on a new line.

> "apple"

> "banana"

> "cherry"

def print_fruits():
    fruits = ["apple", "banana", "cherry"]
    for fruit in fruits:
        print(fruit)

print_fruits()

Practice: Function to Print a Countdown

1. Define a function named countdown.

2. Inside the function, use a for loop and the range function to count down from 5 to 1 (inclusive), printing each number on a new line.

3. After the last number, print the string "Blast off!".

4. After the function definition, call your countdown function.

5. Run your code and confirm that the output is a countdown from 5 to 1, followed by "Blast off!".

> 
5
4
3
2
1
Blast off!

def countdown():
    for i in range(5, 0, -1):
        print(i)
    print("Blast off!")
countdown()