Function definition and syntax in Python - Mini Project: Build & Apply

Function definition and syntax

📖 Scenario: You are learning how to create your own functions in Python. Functions help you group instructions together so you can reuse them easily, like a recipe you follow whenever you want to bake a cake.

🎯 Goal: Build a simple function called greet that prints a welcome message when called.

📋 What You'll Learn

Create a function named greet with no parameters

Inside the function, print the exact message: "Hello, welcome!"

Call the function greet to show the message

💡 Why This Matters

🌍 Real World

Functions help programmers organize code into reusable blocks, making programs easier to read and maintain.

💼 Career

Knowing how to define and use functions is a basic skill required for almost all programming jobs.

1

Create a function named greet

Write a function definition for a function called greet with no parameters. Inside the function, write a print statement that prints exactly "Hello, welcome!".

Python

# Define the function greet
# Your code here

Need a hint?

Use the def keyword to start a function. Remember to indent the print line inside the function.

2

Call the function greet

Add a line of code that calls the function greet to run the code inside it.

Python

def greet():
    print("Hello, welcome!")

# Call the greet function
# Your code here

Need a hint?

To call a function, write its name followed by parentheses.

3

Add a variable inside the function

Inside the greet function, create a variable called message and set it to the string "Hello, welcome!". Then change the print statement to print the message variable instead of the string directly.

Python

def greet():
    # Create a variable message
    # Your code here
    print(message)

greet()

Need a hint?

Assign the string to message and then print message.

4

Run the program to see the output

Run the program and print the output. The output should be exactly Hello, welcome!.

Python

def greet():
    message = "Hello, welcome!"
    print(message)

greet()

# Run the program to see the output

Need a hint?

Make sure you called the function greet() so it prints the message.