use of creating class methods in python code example

Example 1: class in python

class LuckyLemur():
  	def __init__(self, description):
		self.description = description
	
    def reveal_description(self):
    	print(f'Lucky Lemur is {self.description}')

lucky_lemur = LuckyLemur('Pro')
lucky_lemur.reveal_description()

Example 2: class methods in python

from datetime import date

# random Person
class Person:
    def __init__(self, name, age):
        self.name = name
        self.age = age

    @classmethod
    def fromBirthYear(cls, name, birthYear):
        return cls(name, date.today().year - birthYear)

    def display(self):
        print(self.name + "'s age is: " + str(self.age))

person = Person('Adam', 19)
person.display()

person1 = Person.fromBirthYear('John',  1985)
person1.display()