List vs Tuple: Differences

Introduction

The classes of Python data structures are List and Tuple. The tuple has static properties, whereas the list is dynamic. This means that because tuples are static, they are faster than lists because lists can be modified, whereas tuples cannot. Tuples are denoted by parenthesis, while lists are denoted by square brackets.

Important differences between List and Tuple in Python

LIST	TUPLE
Lists are mutable	Tuples are immutable
Iterations in lists are time consuming	Iterations in tuple are faster
The list is better for actions, such as insertion and deletion.	Tuple is appropriate for accessing the elements
Lists consume more memory	Tuple is slightly memory efficient
Lists have several built-in methods	Tuple does not have any built-in methods

Key Differences

Test whether tuples are immutable and list are mutable

Now we will compare mutability between a list and tuples

List Mutability

List = [1, 2, 3, 4, 5, 6]

print("Original list ", List)

List[1] = 10

print("New list ", List)

Output:

Original list [1, 2, 3, 4, 5, 6]

New list [1, 10, 3, 4, 5, 6]

Tuple Mutability

Tup = (1, 2, 3)

print("Original Tuple ", Tup)

Tup[1] = 10

print("New Tuple ", Tup)

Output:

Traceback (most recent call last):

File "./prog.py", line 4, in <module>

TypeError: 'tuple' object does not support item assignment

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Test whether tuples are memory efficient

Now we will compare space efficiency between a list and tuples

Example:

import sys

lis = []

tup = ()

lis = ["A", "B"]

tup = ("A", "B")

print(sys.getsizeof(lis))

print(sys.getsizeof(tup))

Output:

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