Python Tuples

A Tuple is an ordered, immutable collection. Once created, you cannot modify its contents. This immutability makes tuples faster than lists and perfect for protecting data.

Why Use Tuples?

Use tuples when:

• Data shouldn't change (coordinates, RGB colors, database records)
• You need better performance
• You want to use as dictionary keys
• Returning multiple values from functions

Creating Tuples

Accessing Tuple Items

Tuples use the same indexing and slicing as lists.

Immutability: The Key Difference

Tuple Operations

Tuple Unpacking

One of Python's most elegant features!

Nested Tuples

Tuples as Dictionary Keys

Unlike lists, tuples can be dictionary keys because they're immutable and hashable.

Named Tuples

Make your code more readable with named tuples!

Returning Multiple Values from Functions

Performance: Tuples vs Lists

When to Use Tuples vs Lists

Coding Challenge: Point Distance Calculator 📐

Quiz

Key Takeaways

✅ Tuples are immutable - cannot be changed after creation.
✅ Use parentheses () to create tuples.
✅ Single-item tuples need a trailing comma: (42,).
✅ Tuple unpacking enables elegant code: x, y = point.
✅ Named tuples make code more readable.
✅ Tuples are faster and use less memory than lists.
✅ Use tuples for fixed data, lists for changing data.

What's Next?

In the next lesson, we'll explore Sets - unordered collections of unique items perfect for removing duplicates and set operations.

Keep coding! 🚀