Python Keyword Arguments

Introduction

In this lab, we dive into the fascinating world of Python keyword arguments using a thrilling scenario set in a high-altitude sky city. You will assume the role of an airborne explorer, navigating through the unique challenges presented in this lofty environment. Your goal is to master the concept of keyword arguments and apply them to solve specific challenges encountered in this high-flying adventure.

Skills Graph

Understanding the Basics of Keyword Arguments

In this step, we will start by understanding the basics of keyword arguments in Python. We will explore how to define functions that accept keyword arguments and how to use them effectively. Let's start by opening a Python file named keyword_args.py in the ~/project directory with the following content:

## keyword_args.py

def greet_person(name, message="Hello"):
    print(f"{message}, {name}!")

greet_person(name="Alice")

Run the script:

python keyword_args.py

The information below should be displayed on your terminal:

Hello, Alice!

Using Multiple Keyword Arguments

In this step, we will explore the usage of multiple keyword arguments in Python functions. We will create the describe_pet function to accept multiple keyword arguments for enhanced flexibility. Open a Python file named multi_keyword_args.py in the ~/project directory with the following content:

## multi_keyword_args.py

def describe_pet(animal_type, pet_name, **pet_info):
    print(f"\nI have a {animal_type}.")
    print(f"My {animal_type}'s name is {pet_name}.")
    for key, value in pet_info.items():
        print(f"{key}: {value}")

describe_pet("dog", "Buddy", age=4, color="brown", breed="Golden Retriever")

Run the script:

python multi_keyword_args.py

The information below should be displayed on your terminal:

I have a dog.
My dog's name is Buddy.
age: 4
color: brown
breed: Golden Retriever

Summary

In this lab, we have delved into the world of Python keyword arguments through an engaging narrative set in a high-altitude sky city. By creating practical examples and hands-on exercises, you have gained a comprehensive understanding of using keyword arguments in Python functions. This lab provides the foundation for mastering this essential aspect of Python programming.