🚪🐍 Python Dictionary: Unlock the Roblox Doors Game with Code 🐍🚪

Hey there, young coders! 😄 Are you ready to learn something super cool and fun? Today, we'll learn about Python dictionaries and how they're like the doors in your favorite Roblox game! 🎮

Inspired by Aaron Liu who shared this amazing game with me

What's a Python Dictionary? 📖

A Python dictionary is like a magical storage box 🎁 that holds pairs of keys 🔑 and values 📝. Imagine you're playing Roblox, and you find lots of colorful doors 🚪🌈. To open each door, you need the matching key. That's just how Python dictionaries work!

⭐ Fun Fact:In Python, dictionaries are also called "dicts"!

How Do Dictionaries Work? 🤔

Let's create a simple dictionary to store the keys for our Roblox doors. Here's our magical storage box:

door_keys = {}

It's empty right now, but let's add some keys 🔑 and their matching door colors 🚪:

door_keys = {
    "red_door": "red_key",
    "blue_door": "blue_key",
    "green_door": "green_key"
}

Now, we have a dictionary with three doors and their matching keys. Let's see how to use it!

Opening the Doors 🚪

To open a door, we just need to find the matching key in our dictionary. Let's try to open the red door:

key_for_red_door = door_keys["red_door"]
print("The key for the red door is:", key_for_red_door)

This will print:

The key for the red door is: red_key

🎉 Congratulations! You just opened the red door using a Python dictionary!

Adding More Doors 🔑🚪

You can also add new doors to your magical storage box. Let's add a yellow door:

door_keys["yellow_door"] = "yellow_key"

Now our dictionary looks like this:

{
    "red_door": "red_key",
    "blue_door": "blue_key",
    "green_door": "green_key",
    "yellow_door": "yellow_key"
}

Let's Play with Our Dictionary! 🎮

Want to make sure you have the right key for a door? Here's an easy trick:

door_to_check = "blue_door"
if door_to_check in door_keys:
    print("We have the key for", door_to_check)
else:
    print("Oops! We don't have the key for", door_to_check)

This will print:

We have the key for blue_door

Your Turn 🌟

Python dictionaries are like magical storage boxes 🎁 that hold pairs of keys 🔑 and values 📝. They're perfect for organizing and finding things, just like the keys to open doors in Roblox!

Now you know how to create, use, and update Python dictionaries! 🎉

Exercise 1: Update Dictionary

Given a dictionary student with the key name having the value "John Doe" and the key age having the value 25, write a Python script to add a new key-value pair, "grade" with the value "A-", and update the age to 26.

student = {
    "name": "John Doe",
"age": 25
}
# Your code goes here

Exercise 2: Accessing Values

Consider the following dictionary of a book collection with the book titles as keys and the respective authors as values:

book_collection = {
    "1984": "George Orwell",
"Brave New World": "Aldous Huxley",
"Fahrenheit 451": "Ray Bradbury"
}
# Your tasks:
# 1. Print the author of "1984".
# 2. Check if "The Handmaid's Tale" is in the collection and print an appropriate message whether it is or not.