When should we use class method in Python?

A class method is a method that is bound to a class rather than its object . It doesn’t require creation of a class instance, much like staticmethod. The difference between a static method and a class method is: Static method knows nothing about the class and just deals with the parameters.

A method is a function that “belongs to” an object. (In Python, the term method is not unique to class instances: other object types can have methods as well . For example, list objects have methods called append, insert, remove, sort, and so on.

You can use class methods for any methods that are not bound to a specific instance but the class . In practice, you often use class methods for methods that create an instance of the class. When a method creates an instance of the class and returns it, the method is called a factory method.

To call a class method, put the class as the first argument . Class methods can be can be called from instances and from the class itself. All of these use the same method. The method can use the classes variables and methods.