python define class

                                    class Mammal:
    def __init__(self, name):
        self.name = name

    def walk(self):
        print(self.name + " is going for a walk")


class Dog(Mammal):
    def bark(self):
        print("bark!")


class Cat(Mammal):
    def meow(self):
        print("meow!")


dog1 = Dog("Spot")
dog1.walk()
dog1.bark()
cat1 = Cat("Juniper")
cat1.walk()
cat1.meow()

                                    # To create a simple class:
class Shape:
  	def __init__():
      	print("A new shape has been created!")
      	pass
    
    def get_area(self):
		pass

# To create a class that uses inheritance and polymorphism
# from another class:
class Rectangle(Shape):
  
	def __init__(self, height, width): # The constructor
    	super.__init__()
        self.height = height
    	self.width = width

	def get_area(self):
      	return self.height * self.width

                                    class Fan:

    def __init__(self, company, color, number_of_wings):
        self.company = company
        self.color = color
        self.number_of_wings = number_of_wings
        
    def PrintDetails(self):
        print('This is the brand of',self.company,'its color is', self.color,' and it has',self.number_of_wings,'petals')
    
        
    def switch_on(self):
        print("fan started")
        
    def switch_off(self):
        print("fan stopped")
        
    def speed_up(self):
        print("speed increased by 1 unit")
        
    def speed_down(self):
        print("speed decreased by 1 unit")
        
usha_fan = Fan('usha','skin',5)
fan = Fan('bajaj','wite', 4)


print('these are the details of this fan')
usha_fan.PrintDetails()
print()

usha_fan.switch_on()

                                    class Person:#set name of class to call it 
  def __init__(self, name, age):#func set ver
    self.name = name#set name
    self.age = age#set age
   

    def myfunc(self):#func inside of class 
      print("Hello my name is " + self.name)# code that the func dose

p1 = Person("barry", 50)# setting a ver fo rthe class 
p1.myfunc() #call the func and whitch ver you want it to be with 

                                    class MyClass(object):
  def __init__(self, x):
    self.x = x