Python Tuple

A Python tuple is a collection of ordered, immutable, and heterogeneous elements. 

  1. Ordered Collection - Tuples maintain the order of elements as they are defined.
  2. Immutable - Once a tuple is created, its elements cannot be changed, added, or removed. However, if an element is mutable (like a list), the contents of that element can be modified.
  3. Heterogeneous Elements - A tuple can contain elements of different data types (e.g., integers, floats, strings)

 Creating a Tuple:Python Tuple, ordered, immutable, heterogeneous .

# Tuple of integers
tuple1 = (1, 2, 3)
print(tuple1)  # Output: (1, 2, 3)

# Tuple of mixed data types
tuple2 = ('apple', 3.14, 5)
print(tuple2)  # Output: ('apple', 3.14, 5)

Accessing Elements:

tuple1 = (1, 2, 3)
print(tuple1[0])  # Accessing the first element, Output: 1
print(tuple1[1:])  # Slicing, Output: (2, 3)

Immutable Nature:

tuple1 = (1, 2, 3)
# This will cause an error:
# tuple1[0] = 4
# TypeError: 'tuple' object does not support item assignment

# However, you can create a new tuple with modified elements
tuple1_modified = (4,) + tuple1[1:]
print(tuple1_modified)  # Output: (4, 2, 3)

 Tuple with Mutable Element:

# Tuple with a list as an element
tuple_with_list = ([1, 2, 3], 'hello')
print(tuple_with_list)  # Output: ([1, 2, 3], 'hello')

# Modifying the mutable element inside the tuple
tuple_with_list[0].append(4)
print(tuple_with_list)  # Output: ([1, 2, 3, 4], 'hello')

Tuple with Mutable Elements:

# Tuple with a list as an element
tuple_with_list = ([1, 2, 3], 'hello')
print(tuple_with_list)  # Output: ([1, 2, 3], 'hello')

# Modifying the mutable element inside the tuple
tuple_with_list[0].append(4)
print(tuple_with_list)  # Output: ([1, 2, 3, 4], 'hello')

Tuple Unpacking:

tuple3 = ('a', 'b', 'c')
x, y, z = tuple3
print(x)  # Output: 'a'
print(y)  # Output: 'b'
print(z)  # Output: 'c'

Tuples are commonly used for returning multiple values from functions, as dictionary keys (since they are immutable), and in situations where immutability and order preservation are desired properties.