Python property class

cheat_3.py

"""
CHEAT 3: a class with person property using property class
 
There are two ways to specify a property: 
  (1) property class 
  (2) @property decorator
  
https://docs.python.org/2/library/functions.html#property
"""
 
class Person(object):  # Python > 2.6 you need class clause Person(object)
 
    def __init__(self):
        self._name = ""
 
    def get_name(self):
        return self._name
 
    def set_name(self, value):
        self._name = value
 
    def del_name(self):
        del(self._name)

    name = property(get_name, set_name, del_name, "property name") 
 
# Test
person = Person()
print person.name
person.name = "David"
print person.name
del(person.name)
print person.name
 
# Result:
"""
 
David
 
Traceback (most recent call last):
  ...
AttributeError: 'Person' object has no attribute '_name'
"""