An example of a class example using Python3.

class-example.py

#! /usr/local/bin/python3 
class Dog:
    #Python's constructor; setting properties similar to JS
    def __init__(self, name, breed, age):
        self.name = name
        self.breed = breed
        self.age = age
    
    #Using self to update the name property on the newly created object
    def set_name(self, name):
        self.name = name

    def set_breed(self, breed):
        self.breed = breed

    def set_age(self, name):
        self.name = name

    def get_name(self):
        return self.name
    
    def get_breed(self):
        return self.breed

    def get_age(self):
        return self.age

    def __str__(self):
        return ("%s %s %d" % (self.name, self.breed, self.age)) 

# Create new dog object
myDog = Dog("Isabelle", "Golden Retriever", 2)
print(myDog) #Isabelle Golden Retriever 2
#Update my dog's name to Molly
myDog.set_name("Molly")
print(myDog) #Molly Golden Retriever 2