Property

New In Python 2.2

Changed In Python 2.6: The getter, setter, and deleter attributes were added.

property(fget=None, fset=None, fdel=None, doc=None) -> property attribute

Usage

import datetime

class Student(object):

    birth_year = 1988

    def get_birth_year(self):
        return self.birth_year

    def set_birth_year(self, value):
        self.birth_year = value

    birth_year = property(get_birth_year, set_birth_year)

    def get_age(self):
        return datetime.date.today().year - self.birth_year

    age = property(get_age)

Since Python 2.6

import datetime

class Student(object):

    birth_year = 1988

    @property
    def birth_year(self):
        return self.birth_year

    @birth_year.setter
    def birth_year(self, value):
        self.birth_year = value

    @property
    def age(self):
        return datetime.date.today().year - self.birth_year

Property parameter not support

@property
def age(self, birth_year):
    xxx

References

[1] [email protected], 2. Built-in Functions — property

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