Python property () function

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The function is property()



used to define properties in classes.

The method property()



provides an interface for the attributes of an instance of a class. It encapsulates instance attributes and provides properties, similar to how it works in Java and C #.

The method property()



takes on the input methods get



, set



and delete



, and returns class objects property



.

property()



property



(https://www.tutorialsteacher.com/python/property-decorator).

:

1. fget
   
   
   
   : () . None. 

   
   
   
   
   

2. fset
   
   
   
   : () . None.

   
   
   
   
   

3. fdel
   
   
   
   : () . None.

   
   
   
   
   

4. doc
   
   
   
   : () , . None.

   
   
   
   
   

:

, .

, Python property()



.

class person:
    def __init__(self):
        self.__name=''
    def setname(self, name):
        print('setname() called')
        self.__name=name
    def getname(self):
        print('getname() called')
        return self.__name
    name=property(getname, setname)
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

property(getname, setname)



. , name



__name



. name



, getname()



setname()



, .

>>> from person import person
>>> p1=person()
>>> p1.name="Steve"
setname() called
>>> p1.name
getname() called
'Steve'
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

, getname()



, name



. setname



, name



. __name



.

, .

class person:
    def __init__(self, name):
        self.__name=name
    def setname(self, name):
        print('setname() called')
        self.__name=name
    def getname(self):
        print('getname() called')
        return self.__name
    def delname(self):
        print('delname() called')
        del self.__name
    # Set property to use get_name, set_name
    # and del_name methods
    name=property(getname, setname, delname)
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

delname()



, name



.

>>> from person import person
>>> p1=person()
>>> p1.name="Steve"
setname() called
>>> del p1.name
delname() called
      
      

        
        
        
      

    
        
        
        
      
      

        
        
        
      

    
    

, property()



Python.

@property



property()



.

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