Keyword arguments in Python - Mini Project: Build & Apply

Using Keyword Arguments in Python Functions

📖 Scenario: You are creating a simple program to greet people with their name and age. You want to use keyword arguments in a function to make your code clear and flexible.

🎯 Goal: Build a Python function that uses keyword arguments to greet a person by their name and age. You will call this function with keyword arguments to see how it works.

📋 What You'll Learn

Create a function called greet that takes two keyword arguments: name and age.

Call the greet function using keyword arguments.

Print the greeting message inside the function.

💡 Why This Matters

🌍 Real World

Keyword arguments help make your code easier to read and maintain, especially when functions have many parameters.

💼 Career

Understanding keyword arguments is important for writing clear and bug-free code in many programming jobs.

1

Define the greet function with keyword arguments

Write a function called greet that takes two keyword arguments: name and age. Inside the function, create a variable message that stores the string: f"Hello, {name}! You are {age} years old."

Python

# Define the greet function with keyword arguments name and age
# Your code here

Need a hint?

Use def greet(*, name, age): to force keyword arguments.

2

Add a print statement inside the greet function

Inside the greet function, add a line to print the message variable.

Python

def greet(*, name, age):
    message = f"Hello, {name}! You are {age} years old."
    # Print the message
    # Your code here

Need a hint?

Use print(message) to show the greeting.

3

Call the greet function with keyword arguments

Call the greet function using keyword arguments: name="Alice" and age=30.

Python

def greet(*, name, age):
    message = f"Hello, {name}! You are {age} years old."
    print(message)

# Call greet with name='Alice' and age=30
# Your code here

Need a hint?

Call the function like greet(name="Alice", age=30).

4

Call the greet function with keyword arguments in reverse order

Call the greet function again using keyword arguments but this time with age=25 and name="Bob". Then run the program to see both greetings printed.

Python

def greet(*, name, age):
    message = f"Hello, {name}! You are {age} years old."
    print(message)

greet(name="Alice", age=30)

# Call greet with age=25 and name='Bob'
# Your code here

Need a hint?

Try calling greet(age=25, name="Bob") to see how keyword arguments allow any order.