Tuple

Definition

A tuple is an immutable, ordered collection of elements in Python. Elements in a tuple can be of different data types.

5 Must Know Facts For Your Next Test

1. Tuples are defined using parentheses, e.g., (1, 2, 'a').
2. Once created, the elements of a tuple cannot be changed or modified.
3. Tuples support indexing and slicing like lists.
4. Tuples can be nested, meaning you can have tuples within tuples.
5. Using tuples as keys in dictionaries is possible because they are immutable.

Review Questions

• How do you define a tuple in Python?
• Can elements within a tuple be modified after creation? Why or why not?
• Describe one scenario where using a tuple would be more advantageous than using a list.

Related terms

List: An ordered collection of elements that is mutable and defined using square brackets, e.g., [1, 2, 'a'].

Immutable: An object whose state cannot be modified after it is created. Tuples are an example of immutable objects.

Indexing: The process of accessing individual elements within an ordered collection using their position number.