Python Tuples

A Tuple is a collection data type in Python used to store multiple values in a single variable. Tuples are ordered and immutable.

Why Tuples are Important?

Creating a Tuple

Tuples are created using parentheses ().

numbers = (10, 20, 30, 40)

print(numbers)

Output

(10, 20, 30, 40)

Here:

Tuple with One Element

To create a tuple with one element, comma is required.

data = (10,)

print(type(data))

Output

<class 'tuple'>

Without comma, Python treats it as integer instead of tuple.

Tuple can Store Different Data Types

data = (10, "Python", 99.5, True)

print(data)

Output

(10, 'Python', 99.5, True)

Tuple Indexing

Each tuple element has an index number. Indexing starts from 0.

fruits = ("Apple", "Mango", "Orange")

print(fruits[0])

print(fruits[1])

print(fruits[2])

Output

Apple
Mango
Orange

Negative Indexing

Negative indexing starts from the end.

fruits = ("Apple", "Mango", "Orange")

print(fruits[-1])

print(fruits[-2])

Output

Orange
Mango

Tuple Slicing

Slicing returns multiple tuple elements.

numbers = (10, 20, 30, 40, 50)

print(numbers[1:4])

Output

(20, 30, 40)

Python starts from index 1 and stops before index 4.

Tuples are Immutable

Tuple values cannot be changed after creation.

fruits = ("Apple", "Mango", "Orange")

fruits[1] = "Banana"

Output

TypeError

Python gives error because tuples do not allow modification.

Looping Through Tuple

Tuples work with loops just like lists.

colors = ("Red", "Blue", "Green")

for item in colors:

    print(item)

Output

Red
Blue
Green

Finding Tuple Length

Use len() function to count elements.

numbers = (10, 20, 30, 40)

print(len(numbers))

Output

4

count() Method

count() returns how many times an element appears.

numbers = (10, 20, 10, 30, 10)

print(numbers.count(10))

Output

3

index() Method

index() returns the position of an element.

fruits = ("Apple", "Mango", "Orange")

print(fruits.index("Mango"))

Output

1

Tuple Packing

Packing means storing multiple values into one tuple.

data = ("Ali", 20, 85)

Python automatically packs values into tuple.

Tuple Unpacking

Unpacking extracts tuple values into variables.

data = ("Ali", 20, 85)

name, age, marks = data

print(name)

print(age)

print(marks)

Output

Ali
20
85

Joining Tuples

Tuples can be joined using + operator.

tuple1 = (1, 2)

tuple2 = (3, 4)

result = tuple1 + tuple2

print(result)

Output

(1, 2, 3, 4)

Repeating Tuples

numbers = (10, 20)

print(numbers * 3)

Output

(10, 20, 10, 20, 10, 20)

Checking if Item Exists

Use in keyword to check elements.

fruits = ("Apple", "Mango", "Orange")

print("Mango" in fruits)

print("Banana" in fruits)

Output

True
False

Nested Tuples

Tuple inside another tuple is called nested tuple.

data = (

    (1, 2),

    (3, 4)
)

print(data)

Output

((1, 2), (3, 4))

Difference Between List and Tuple

Real Life Example

Tuples are useful for storing fixed student data.

student = ("Ali", 20, "Delhi")

print(student[0])

print(student[1])

print(student[2])

Output

Ali
20
Delhi

Summary