🎓 Top 15 Udemy Courses (80-90% Discount): My Udemy Courses - Ramesh Fadatare — All my Udemy courses are real-time and project oriented courses.
▶️ Subscribe to My YouTube Channel (178K+ subscribers): Java Guides on YouTube
▶️ For AI, ChatGPT, Web, Tech, and Generative AI, subscribe to another channel: Ramesh Fadatare on YouTube
1. Introduction
In Python programming, understanding the difference between mutable and immutable objects is crucial. A mutable object can be changed after it is created, while an immutable object cannot be changed once it is created. This distinction affects how you write and optimize your code.
2. Key Points
1. Changeability: Mutable objects can be modified, but immutable cannot.
2. Types: Lists and dictionaries are mutable; tuples and strings are immutable.
3. Memory Use: Mutable objects can lead to higher memory use due to the need for creating copies.
4. Performance: Immutable objects can improve performance by allowing Python to make certain optimizations.
3. Differences
| Characteristic | Mutable | Immutable |
|---|---|---|
| Changeability | Can be changed | Cannot be changed |
| Types | Lists, Dictionaries | Tuples, Strings |
| Memory Use | Higher due to copies | Lower |
| Performance | Can be slower | Often faster |
4. Example
# Example of Mutable Object
my_list = [1, 2, 3]
my_list.append(4) # Changes the list
# Example of Immutable Object
my_tuple = (1, 2, 3)
# Trying to change the tuple will result in an error
# my_tuple[0] = 4 # Uncommenting this line will raise an error
Output:
Mutable Object Output: [1, 2, 3, 4] Immutable Object Output: TypeError: 'tuple' object does not support item assignment
Explanation:
1. The mutable list my_list was changed by appending a number to it.
2. The immutable tuple my_tuple cannot be changed, and attempting to do so results in an error.
5. When to use?
- Use mutable objects like lists and dictionaries when you need to change the size or content of the data structure.
- Use immutable objects like tuples and strings when you need a constant, unchangeable data structure, which can optimize memory and performance.
Related Python Posts:
Difference Between Local and Global Variables in Python
Difference Between List and Tuple in Python
Difference Between Array and List in Python
Difference Between List and Dictionary in Python
Difference Between List, Tuple, Set and Dictionary in Python
Difference Between a Set and Dictionary in Python
Difference between for loop and while loop in Python
Difference Between pass and continue in Python
Difference Between List append and extend in Python
Difference Between == and is operator in Python
Difference Between Deep and Shallow Copy in Python
Class Method vs Static Method in Python
Class Method vs Instance Method in Python
Difference Between List and Set in Python
Difference Between Generator and Iterator in Python
Difference Between str and repr in Python
Method Overloading vs Overriding in Python
Difference Between Dictionary and Tuple in Python
Difference Between Dictionary and Object in Python
Difference Between Mutable and Immutable in Python
Difference Between Interface and Abstract Class in Python
Difference Between Python Script and Module
Difference Between for Loop and Iterator in Python
My Top and Bestseller Udemy Courses. The sale is going on with a 70 - 80% discount. The discount coupon has been added to each course below:
Build REST APIs with Spring Boot 4, Spring Security 7, and JWT
![[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25](https://img-c.udemycdn.com/course/750x422/6852721_b512_2.jpg "[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25")
[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25
ChatGPT + Generative AI + Prompt Engineering for Beginners
Spring 7 and Spring Boot 4 for Beginners (Includes 8 Projects)
Available in Udemy for Business
Building Real-Time REST APIs with Spring Boot - Blog App
Available in Udemy for Business
Building Microservices with Spring Boot and Spring Cloud
Available in Udemy for Business
Java Full-Stack Developer Course with Spring Boot and React JS
Available in Udemy for Business
Build 5 Spring Boot Projects with Java: Line-by-Line Coding
Testing Spring Boot Application with JUnit and Mockito
Available in Udemy for Business
Spring Boot Thymeleaf Real-Time Web Application - Blog App
Available in Udemy for Business
Master Spring Data JPA with Hibernate
Available in Udemy for Business
Spring Boot + Apache Kafka Course - The Practical Guide
Available in Udemy for Business
Comments
Post a Comment
Leave Comment