what does the @ in python do

In Python , the `@ ` symbol is used to denote a special syntax called " attribute access ." It is used to access the attributes of an object , which are the variables that define the object ' s behavior and properties . \n \n For example , consider a class in Python that defines a dog object : \n ``` python \n class Dog : \n def __ init __( self , name , age ): \n self . name = name \n self . age = age \n \n def b ark ( self ): \n print (" W o of ! ") \n \n dog = Dog (" F ido ", 3 ) \n print ( dog . name ) # Output : F ido \n print ( dog . age ) # Output : 3 \n dog . b ark () # Output : Wo of ! \n ``` \n In this example , the `@ ` symbol is used to access the ` name ` and ` age ` attributes of the ` dog ` object . The ` name ` attribute is accessed using ` dog . name `, and the ` age ` attribute is accessed using ` dog . age `. \n \n The `@ ` symbol can also be used to define an instance variable in a class . For example : \n ``` python \n class Person : \n def __ init __( self , name , age ): \n self . name = name \n self . age = age \n \n @ property \n def height ( self ): \n return self . age * 0 . 7 5 \n \n person = Person (" A lice ", 2 5 ) \n print ( person . height ) # Output : 1 8 . 7 5 \n ``` \n In this example , the `@ property ` decor ator is used to define a ` height ` attribute that is calculated based on the ` age ` attribute . The ` height ` attribute is accessed using ` person . height `, and its value is calculated using a formula . \n \n Over all , the `@ ` symbol is a powerful tool in Python that allows you to access and manipulate attributes of objects in a flexible and express ive way . </s>