Why Are There Separate Tuple and List Data Types in Python

Separate tuple and list data types are provided because both have different roles. Tuples are immutable, whereas lists are mutable. That means Lists can be modified, whereas Tuple cannot.

Tuples are sequences, just like lists. The differences between tuples and lists are, the tuples cannot be changed unlike lists and tuples use parentheses, whereas lists use square brackets.

Let's see how Lists and Tuples are created.

Creating a Basic Tuple

We will begin the code by creating a basic tuple with integer elements. Next, specify the topics as advanced concepts like tuples nested within tuples. The provided code initializes a tuple, displays its elements, and calculates its length using Python's len() function.

# Creating a Tuple
mytuple = (20, 40, 60, 80, 100)
# Displaying the Tuple
print("Tuple = ",mytuple)
# Length of the Tuple
print("Tuple Length= ",len(mytuple))

The result is obtained as follows -

Tuple =  (20, 40, 60, 80, 100)
Tuple Length=  5

Creating a List Datatype

A list containing 10 integer elements will be created and displayed, with the elements enclosed in square brackets. Additionally, the length of the list will be displayed, along with demonstrating how to access specific elements using square brackets.

# Create a list with integer elements
mylist = [25, 40, 55, 60, 75, 90, 105, 130, 155, 180];
# Display the list
print("List = ",mylist)
# Display the length of the list
print("Length of the List = ",len(mylist))
# Fetch 1st element
print("1st element = ",mylist[0])
# Fetch last element
print("Last element = ",mylist[-1])

The output is produced as follows -

List =  [25, 40, 55, 60, 75, 90, 105, 130, 155, 180]
Length of the List =  10
1st element =  25
Last element =  180

Updating Tuple Values

Tuples are immutable, their elements cannot be directly modified. However,by converting a tuple into a list, updates can be made. The provided code demonstrates this by converting a tuple to a list, modifying an element, and then converting it back to a tuple while displaying the changes.

Let's see an example ?

myTuple = ("John", "Tom", "Chris")
print("Initial Tuple = ",myTuple)
# Convert the tuple to list
myList = list(myTuple)
# Changing the 1st index value from Tom to Tim
myList[1] = "Tim"
print("Updated List = ",myList)
# Convert the list back to tuple
myTuple = tuple(myList)
print("Tuple (after update) = ",myTuple)

We will get the output as follows -

Initial Tuple =  ('John', 'Tom', 'Chris')
Updated List =  ['John', 'Tim', 'Chris']
Tuple (after update) =  ('John', 'Tim', 'Chris')