The Ultimate Guide to Python Programming With Python 3.10 - @classmethod Decorator

The video tutorial explains how to use class methods in Python. It starts by introducing the concept of class methods and their purpose. The tutorial then demonstrates how to define a class method using the class method decorator. It explains the difference between using 'self' and 'cls' in methods and shows how to change class attributes using class methods. A practical example is provided to illustrate changing a class attribute, such as a currency symbol, across all instances of a class.

What happens if you try to access an instance variable using a class method?

Explain how the change symbol method affects all instances of a class.