📋 Learn Python: All About Lists!

 Welcome back to our awesome Python adventure! 🐍

Today, we’re going to explore one of the most useful tools in Python – Lists!

🤔 What is a List?

A list is like a magical box 📦 that can hold many values—numbers, words, or even a mix of both! Think of it like your school bag that holds books, pens, and snacks all at once.

In Python, we create a list using square brackets [ ].

fruits = ["apple", "banana", "mango"]

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🎒 Why Use Lists?

• You can store multiple items in one place.

• You can change, add, or remove items easily.

• Lists help in keeping things organized.

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🧪 Let’s Play With Lists!

1. Creating a List

numbers = [10, 20, 30, 40]

2. Printing a List

print(numbers)

Output:

[10, 20, 30, 40]

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3. Accessing Items by Index

Each item in a list has a position called an index (starting from 0).

fruits = ["apple", "banana", "cherry"]
print(fruits[0])  # apple
print(fruits[2])  # cherry

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4. Changing an Item

fruits[1] = "orange"
print(fruits)  # ['apple', 'orange', 'cherry']

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5. Adding Items

fruits.append("grape")
print(fruits)

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6. Removing Items

fruits.remove("apple")
print(fruits)

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7. Length of a List

print(len(fruits))  # Tells how many items are in the list

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8. Mixing Data Types

mixed = ["pen", 5, True]
print(mixed)

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🎮 Mini Challenge!

Try this fun list code:

subjects = ["Math", "Science", "English"]
subjects.append("Computer")
subjects[0] = "Mathematics"
print(subjects)

What do you think the output will be? 🧐
(Hint: Run it and see!)

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🔍 Fun Facts About Lists

• Lists can even hold other lists! (These are called nested lists!)

• You can loop through a list to do something with each item.

• Lists are super important for games, apps, and even AI!

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📝 Wrap Up

Lists are like your personal helpers in Python. They store stuff, keep it in order, and let you use it whenever you want! Practice making your own lists—favourite games, top movies, or even your shopping list!

Keep learning and keep coding! 💡💻

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