What is the 'cls' variable used for in Python classes?

Asked by Last Modified  

2 Answers

Learn Python

Follow 1
Answer

Please enter your answer

cls in Python holds the reference of the class. It is passed as the first argument to every class methods (methods with @classmethod decorator) by Python itself. class MyClass: @classmethod def what_is_cls(cls): print(cls) MyClass().what_is_cls() #outputs <class '__main__.MyClass'>It is important...
read more
cls in Python holds the reference of the class. It is passed as the first argument to every class methods (methods with @classmethod decorator) by Python itself. class MyClass: @classmethod def what_is_cls(cls): print(cls) MyClass().what_is_cls() #outputs <class '__main__.MyClass'>It is important to note that self and cls are not reserved keywords. They are just naming conventions in Python. read less
Comments

IT professional but interested in teaching english and hindi

cls accepts the class Person as a parameter rather than Person's object/instance. Now, we pass the method Person. printAge as an argument to the function classmethod . This converts the method to a class method so that it accepts the first parameter as a class (i.e. Person).
Comments

Related Questions

I completed my graduation in 2017, now working as an HR Executive in a Consultancy. I want to move to IT Sector. Which course is best for me to learn and get success in life? Please Suggest me
Dear Kumar, My suggestion is to - become good in one programming language - preferably Java and one O/S preferably Linux. Be aware of Open Source systems. Try to identify the opportunities in your existing...
Profile Photo
Kumar
While teaching IT Student (MCA / BCA / BTech), I found most of the students are not having good programming skills but they are still running behind to learn .NET / PHP / PYTHON / ANDROID / JAVA. Why is it so? What we should do better to improve a sound programming skills among most of IT Students?
on college days they r learning c,c++ and following faculties are also giving a road map of "programming means" thease languages only , even these are the languages are familier , where you justify them...
Profile Photo
Amit Kumar
How do I learn Python in depth?
Learning Python in depth is not a big issue first start practising basic of coding daily don't copy and paste start writing the code , after these basic you can go for advanced level of python like OOPS...
Profile Photo
Mahender
0 0
View Comments5
Which is better, Java or Python? And how?
Java is popular among programmers interested in web development, big data, cloud development, and Android app development. Python is favored by those working in back-end development, app development, data science, and machine learning.
Profile Photo
Umamahesh
0 0
View Comments5
I want to conduct python classes for beginners online with minimal charges. Please advise the procedure.
Conducting online Python classes for beginners with minimal charges requires leveraging free tools for teaching, keeping overhead low, and focusing on high-value, hands-on learning. Here is the procedure to get started:
Profile Photo
Ramesh.k

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Facebook Analytics
Assume how the Facebook application will store the millions of customer's record in real-time: facebook = { 'jose': { 'name': 'jose', 'age': 33, 'hobby': , # cricket,football 'mobile': 1111111111, 'email':...
Profile Photo

JAVA - Object Cloning
JAVA - Object Cloning Is the way of creating the same copy of object without calling the class constructor. It means we can make any class object multiple times without calling its default constructor....
Profile Photo

map function in python
The function map takes a function and an iterable as arguments and returns a new iterable with the function applied to each argument. Example: def add_five(x): return x+5 nums = result = list(map(add_five,...
D

Deleted User

0 0
View Comments0

Why Python
Python can be used in any futuristics technology A= Analytics Data Science Artificial Intelligence(AI) Neural Network(NN) Natural Language Processing(NLP) Computer Vision(OpenCV) In Analytics...
Profile Photo

Write your first Python program in 10 minutes
1. Download python from python official site search "python download" in google 2. Install in your machine 3. verify using : "python --version" command 4. Write first program using notepad create...
Profile Photo

Recommended Articles

Python is one of the most popular programming languages in the world. It is general-purpose, object oriented, high-level programming language used in a number of programming fields. Python is a great programming language to learn as it will introduce you to the world of programming. If you are from the technical background...

Read full article >

Business Process outsourcing (BPO) services can be considered as a kind of outsourcing which involves subletting of specific functions associated with any business to a third party service provider. BPO is usually administered as a cost-saving procedure for functions which an organization needs but does not rely upon to...

Read full article >

Applications engineering is a hot trend in the current IT market.  An applications engineer is responsible for designing and application of technology products relating to various aspects of computing. To accomplish this, he/she has to work collaboratively with the company’s manufacturing, marketing, sales, and customer...

Read full article >

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

Looking for Python Training classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you