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

Which language is having more demand in market ROR or Python ? How much time (duration) it will take to learn python or ROR ?
Python is on demand. Also it depends on your capabilities to learn anywhere between 1 week to 1 month on the amount of practise you give.
Himanshu
Is Python good for developing games? Why or why not?
Here's a balanced view: *Why Python is good for game development:* 1. *Easy to learn*: Python is a great language for beginners, making it an excellent choice for new game developers. 2. *Fast development*:...
Raindial
0 0
5

What is a Python development, UGI, Data science and Machine learning? Do they all include Python or are they different? Which is better to learn for making a career?

Python development is a field in which you develop real world applications using the Python programming language. UGI stands for Upper Gastrointestinal and it is a concept in human body. Data Science is...
Srinu

What are the two techniques of Machine Learning?

Two types of learning supervised and unsuperwise learning.
Janvi

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

Ask a Question

Related Lessons


How to know if an object is iterable?
An object in python is said to be an iterable if it obeys one of the following two rules:- 1. Object must consist of __getitem__ method 2. Object must consist of __iter__ method. String objects generally...
S

Sudheer S

0 0
0

Assignment operators
Operation Syntax Comment Assignment = Control flow right to left Add AND += Incremental Subtract AND -= Decremental Multiply AND *= Multiplicative increment Division...

What is a Decorator in Python?
🎀 What is a Decorator in Python? A decorator in Python is a powerful tool that allows you to modify or enhance the behavior of functions or methods without changing their actual code. Decorators use...

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...

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