Tuples:

Tuples in Python

A tuple is an immutable sequence type in Python that can hold a collection of items. Tuples are similar to lists, but they cannot be changed after their creation. Unlike of lists, tuples are immutable.

Creating Tuples

Using Parentheses

# Creating an empty tuple empty_tuple = () # Creating a tuple with elements my_tuple = (1, 2, 3)

Without Parentheses

# Creating a tuple without parentheses my_tuple = 1, 2, 3

Using the Tuple Constructor

# Creating a tuple from a list my_tuple = tuple([1, 2, 3])

Single Element Tuple

# Creating a single element tuple single_element_tuple = (1,)

Major Operations on Tuples

Accessing Elements

# Accessing elements by index my_tuple = (1, 2, 3) print(my_tuple[0]) # Output: 1 print(my_tuple[-1]) # Output: 3

Slicing

# Slicing a tuple my_tuple = (1, 2, 3, 4, 5) print(my_tuple[1:3]) # Output: (2, 3) print(my_tuple[:3]) # Output: (1, 2, 3) print(my_tuple[3:]) # Output: (4, 5)

Concatenation

# Concatenating tuples tuple1 = (1, 2) tuple2 = (3, 4) result = tuple1 + tuple2 print(result) # Output: (1, 2, 3, 4)

Repetition

# Repeating a tuple my_tuple = (1, 2) result = my_tuple * 3 print(result) # Output: (1, 2, 1, 2, 1, 2)

Checking Membership

# Checking if an element exists in a tuple my_tuple = (1, 2, 3) print(2 in my_tuple) # Output: True print(4 in my_tuple) # Output: False

Iterating Through a Tuple

# Iterating through a tuple my_tuple = (1, 2, 3) for item in my_tuple: print(item)

Unpacking Tuples

# Unpacking elements of a tuple my_tuple = (1, 2, 3) a, b, c = my_tuple print(a) # Output: 1 print(b) # Output: 2 print(c) # Output: 3

Tuple Methods

Count

# Counting occurrences of an element in a tuple my_tuple = (1, 2, 2, 3) print(my_tuple.count(2)) # Output: 2

Index

# Finding the index of an element in a tuple my_tuple = (1, 2, 3) print(my_tuple.index(2)) # Output: 1

Example

Here is a complete example demonstrating various operations on tuples:

# Creating tuples empty_tuple = () single_element_tuple = (1,) my_tuple = (1, 2, 3, 4, 5) # Accessing elements print(my_tuple[0]) # Output: 1 print(my_tuple[-1]) # Output: 5 # Slicing print(my_tuple[1:3]) # Output: (2, 3) # Concatenation tuple1 = (1, 2) tuple2 = (3, 4) result = tuple1 + tuple2 print(result) # Output: (1, 2, 3, 4) # Repetition result = my_tuple * 2 print(result) # Output: (1, 2, 3, 4, 5, 1, 2, 3, 4, 5) # Checking membership print(2 in my_tuple) # Output: True print(6 in my_tuple) # Output: False # Iterating through a tuple for item in my_tuple: print(item) # Unpacking a, b, c, d, e = my_tuple print(a) # Output: 1 print(b) # Output: 2 print(c) # Output: 3 print(d) # Output: 4 print(e) # Output: 5 # Tuple methods print(my_tuple.count(2)) # Output: 1 print(my_tuple.index(3)) # Output: 2